I'm glad to hear Celeron isn't the crappy discount processor that it used to be, so it's back to the great debate... The Intel 4500 does appear to run Left 4 Dead (using a dual core processor) so I imagine that Team Fortress 2 will work. Also, I have to say I trust HP over emachines for overall quality. Man, I was hoping I could stay inside a heated building while I waited for black friday...