If you choose the PS3, and you have PS1/2 games you wish to use on it, make sure that the PS3 that you get is backwards-compatible. The new PS3s are not.
Additionally, if you decide on a 360, you may want to get a Falcon, or wait for a Jasper. The CPUs on Falcons produce less heat, leading to less RROD than the original 360s (I think they were Xenons or somesuch thing.) Jaspers are supposed to come with GPUs that produce less heat, but have been expected for months and haven't been seen yet.
No, I didn't read the thread because I've probably heard all of it a thousand times over on GameFAQs.