Really? That's it, a 2.8GHz P4? Heck, I bet my OC'd Athlon XP 2100+ could even match it... But what's your bandwidth though? It'd have to have good upload...
Also, I'm surprised people didn't jump over the Trackmania Nations Forever server more... that tells me that people either don't like racing games, think it has starforce (the original non-forever one did, this one does not), or they don't realize the game is free. (you can get it seperately or on steam)
Anyway, I'm back, so I'm coming in! (well, after I set up controls and stuff)