what games are we talking about?
Audiosurf
Counter Strike: Source
Garry's Mod
Half Life
Half Life 2
Half Life 2: Deathmatch
Half Life 2: Episode One
Half Life 2: Episode Two
Half Life 2: Lost Cost
Half Life: Deathmatch Source
Half Life: Blue Shift
Half Life: Opposing Force
Half Life: Source
Obsidian Conflict 1.35
Portal
Sven Co-op
Synergy
Team Fortress 2
Team Fortress Classic
Alien Swarm, when it does the slow-mo thing, i will lag a bit, i can't play that on full settings or i'll lag throughout the entire game so i stick with the recommended settings
Garry's Mod will lag if there is a bunch of particles (fire, smoke, etc)
Left 4 Dead, even though i can run that on full settings, will lag when i'm using an automatic weapon like the assault rifle
Left 4 Dead 2 stopped being able to run on full settings after The Passing came out, it seems that my nVidia graphics card no longer supports Left 4 Dead 2, which is why my Windows 7 computer can run it on full settings, that has an ATI graphics card, Left 4 Dead 2 still lags a bit in situations like when there is a lot of particles (such as smoke, fire, rain, etc), but at least i can use automatic weapons with little to no lag (although i will only use a automatic weapon if i joined a server with the survivor carrying an automatic weapon, i still prefer shotguns)
You have time to do awesome screens like that and not a comic?
I just haven't felt like it :(