- You can play up to 4 players maingame co-op on Serious Sam with 2 linked xboxes and 8 player deathmatches!
- You can play 4 player deathmatches on Mech Assault with 2 linked Xboxes!
- Whacked appears to only let you have 1 person per xbox when using System Link (Taken from the manual, I have yet to see if this is actually a mistake: ie if Mech Assault can do it Whacked should bloody well be able too!).
- Rainbow Six 3 appears to only let you have 1 player per Xbox (this is not surprising as the levels are HUGE!)
- Deathrow will allow you to play 8 player matches with 2 linked Xboxes!
- Brute Force is either 4 or 8 player in deathmatch and Squad deathmatch using 2 linked Xboxes (the manual isn't that clear on this). You can also play the mian game using System Link (I'm assuming this is limited to 4 players as there are only 4 characters to play).
- I think Wolfenstein allows 1 person per Xbox like Rainbow six 3 does (although the manual is less than clear).
- Timesplitters 2 lets you have up to 8 players with 2 xboxes linked.
- Unreal's complicated - you can add 1, 2 or 3 players per Xbox depending on the map.
- I think Ghost Recon can have 2 players per linked Xbox.
Rainbow Six 3 - good game but only full worth it if you intend to move up to Live. However System Link is the only way to get some multi going without having Live.
Serious Sam (cheap)
Ghost Recon - good game but only full worth it if you intend to move up to Live
Mech Assault (cheap) - good game but only full worth it if you intend to move up to Live
Midtown Madness 3
Return to Castle wolfenstein - good game but only full worth it if you intend to move up to Live. Also, like Rainbow Six 3, you will need System Link to access the vs elements of RTCW without having Live (I think, unless it just lets you play co-op over 2 xboxes).
Timesplitters 2 (Cheap)
Unreal - might be worth a blast.
Also, since you will have 2 tv's, you can get a little device which splits a signal from a single xbox to two tv's this means that like playing a System Link game you can play a split screen game over two tv's aswell (although, of course, the screen will still show a split screen - point is you get your own tv and you don't have to go back to huddling round one tv after a System Link game).
I'm trying to get this 'signal split' thing setup very soon (should only set you back about 14 - 20 quid).
Midtown Maddness 3
Tony Hawks PS 4