The Dell seems to be a good deal with the 499 dollar package since it includes the LCD monitor as well. Seems to have the specs to run games well enough, a Geforce 6150 LE. 

That Tiger direct 549 tower looked good too, really strong, but just not sure what software and operating system it has...plus it lacked the monitor! I want a fancy shmancy flatscreen! My old hewlett monitor will just remind me of the old warhorse I left behind.