PSWii.

This post has to be a joke. Can you read? He said he owns a 360 already. You PHAIL. 

Trouble is 360 and PS3 share so many games at the moment, The hardcore PS3 exclusives are not out till next year or beyond so your better off with a 360 and a Wii.

 I'm sure PS3 will get another price cut next year so then will be time to buy!! 

Well I would buy a PS3, you like MGS right (your avatar), if you buy a PS3 you can play MGS4, you have just to look at this.

PS3:
LittleBigPlanet
MGS4
Killzone 2
Kingdom Hearts III (it's coming for PS3, not for Wii :P)
The Agency
GoW III
FF XIII
FF Versus XIII
WkS
Star Ocean
Dark Cloud 3
Afrika
UT III
Uncharted
R & C
Lord of Vermillion
GT 5
Hot Shots
SOCOM
Folklore
Yakuza 3
Tekken 6
Naruto Project
Eight Days
The Getaway
Jak & Daxter
Haze
...

Wii
Mario Galaxy
Smash Brawl
No More Heroes
Mario Kart
Wii Fit
Zelda
Monster Hunter 3
Nights
FF: CC
Umbrella C.
DQ Swords
Naruto GNT
Trauma Center
Mario & Sonic
Metroid
Pokémon Battle
Chocobo Dungeon
Ghost Squad
...

it just depends on which exclusives you like most from this list :)

If you already have a 360, then getting a PS3 over the Wii is pretty pointless. The PS3 has good games, but all of the 90+ rated ones are on the 360 as well, while the Wii has three 90+ exclusives. Obviously you should take into account what genres you like, as the Wii owns platforming, lightgun and party games, but has very few online shooters, as well as your budget. There are a number of exclusives on the way to the PS3 that might make it worth buying just for them, but none of the current ones, and not at this price.

A lot of 360 exclusives appear on the PC eventually, so PC/PS3(/Wii) is a good combination as well, but you have a 360 already and gaming PCs cost a lot.

I have both, I play on the wii a lot more, however I think that Xbox 360 is better than the PS3 and the wii is better than both. However I play on all three, And each has its own strengths.

The wii is more fun and has the best games by a looong way, twilight princess proves that

The 360 is good for FPS (not my cup of tea) and RPGs (my cup of tea)

The PS3 does not have a lot of good games however the multiformat games seem to play better on it

"""The 360 is good for FPS (not my cup of tea) and RPGs (my cup of tea)"""

==> well, the PS3 is rally laking of RPG so far, I completely agree

"""The PS3 does not have a lot of good games however the multiformat games seem to play better on it"""

==> LOL
sorry, but, i think you are wrong.
+90% of the multiplateform games play better on the Xbox360 (some a little bit better, sometimes really better)

I can undertsand why many people here say that if you have a 360, then get a Wii, as the PS3 and 360 are similar right now. I mean, they do share a lot of heavey hitters (COD4, Orange Box, etc), however, you can't overlook the 1st party titles. The only reason I didn't get a Wii is because, at this moment, it still falls prey, alongside with the PS3, of the "it has no games" category. Sure, people here will tout Mario Galaxy, and Twilight Princess, but I could talk about Ratchet and Clank and Uncharted.

Right now, I'd say that it's only a matter of price for you.....and like I always say, you pay for what you get. You can get your platforming, action, rpg, ect experience with the Wii for $250, but with lack of HD graphics, poor online, and a WIDE selection of shovelware.

Or you can pay $400 for an entry level PS3, get your action, platforming, adventure, etc experience, with HD graphics, a good online system, multimedia functionality, Blu-ray, etc etc

I know it looks like I just basically said "get a PS3 over a Wii" but look at the price difference. You pay for HD, you pay for the multimedia, you pay for high end technology. I'd say it's all about what you're willing to pay for, at this moment.

In 2008 when the heavy hitters for both consoles come out, then it becomes a matter of which games you want to play more. Brawl or MGS4? Mario Kart or GT5? It's a matter of preference then.

But as of now, depending on your take on the "HD era", that's the only factor when choosing between a Wii or PS3. If you just don't care, get a Wii. If your one of the people with a 42" Samsung HDTV, and a surround sound setup, etc, get a PS3.....for right now. I don't have said setup, but I do care about HD, so I picked up a PS3.

Just my take on things

BRAWL>MGS4.