Pretty unlikely. I bought PS3 with three goals:
a) it had games I and my kids wanted and enough BC (60GB UK) that I could put PS2 in storage
b) it had BR HD capability
c) it had video/image storage / streaming to HD TV which my wife wanted
At the time I considered PS3 vs 360 and due to RROD, only really teen/adult games on 360 (and the games that interested me I knew I'd get on PC instead anyway) and lack of BR/HD DVD commitment (addons and extra bits were a no no for me) I got a PS3.
Now there is zero reason for me to consider one. The only games on 360 I was interested in (GoW, Mass Effect and Bioshock) are all on (or so to be) on PC so I can get them on my PC, and I don't see this changing as the 360 isn't going to suddenly sprout extra specs and pass my PC.
I will get a Wii later this year however (wife and kids and I'm sure I'll enjoy it too) however with PS3 / PC combination and BR winning format war 360 (despite price) does not have enough going for it from my point of view. Also my wife won't allow more than one console / unit per TV so its right out of luck anyway as what she says goes!
Try to be reasonable... its easier than you think...
