Funny you should mention SH2 and MGS2 as good games for the PS2 as they're both planned for the Xbox...
From the three next-generation consoles I've played one, the Xbox, and it was a beautiful experience.
Since I'm on a very tight budget I can only afford one next-generation console.

But the Xbox has enough killer-apps to keep me happy...

Yay!
have a PSone so I know that Sony has a very good build-quality on its products so the PS2 should be good.
I think the Xbox is better overall, one of the reasons being that its hard drive is built-in and it costs the same as the PS2 did. The PS2's hard drive can't cost £0. So a PS2 (with 8Gb less HD than the Xbox) would have cost the same as an Xbox with a hard drive on launch!
I can see I'm getting a good deal with the 'Box!
*drools at clips of Halo gameplay*
I want NOW!
Xbox countdown: 1 month and 1 day)