I will buy 3 games the reasons are below:
1. MGS 4: extremely awesome game = (joint Game of the Year tied with Resistance 2)
2. GT 5 Prologue awesome game = best racing game ever made until GT 5 arrives.
3. GTA IV a great game its HD GTA with online- woohoo

@Rock: do you own Wii or XBOX360?
I don't have PS3 yet so I can't play the games you are getting. Looking forward to your reviews on those games.

I'm planning to buy 5 games for wii and xbox so I'll be very busy. I don't know how I can get PS3 and play more games.

Wii Fit and Mario Kart are 100%. I may buy Boom Blox in the fall or something but that is it for the spring..

MGS4 and maybe Mario Kart Wii.

 I do not own a Nintendo Wii or XBox 360. I have my reasons.

I only own a PS3 console because it has the best games available that I enjoy. 

gt5p, gtaIV and mgs4 are the games ill be buying

I'm looking forward to buying No More Heroes as soon I've slightly trimmed my backlog of unfinished games.

After getting a new computer (which is looking really likely, now that I got a summer job secured) I intend to get at least the Orange Box, Supreme Commander, Mass Effect, Bioshock, and Medieval 2: Total War.

Europa Universalis: Rome, Starcraft 2, and Brawl are also on my list if they arrive soon enough.

Mario Kart Wii
Battalion Wars 2 (yes it is already out)

Sin and Punishment on the VC and whatever looks good for 800 points or less.

If I have the money:
SSB:B
PES 08 Wii
No More Heroes

GTAIV is all I really need this spring, I'll pick up MGS4 maybe a month or two after launch.

Out of those listed?  Only GTA IV and MGS4.