what type of gaming are u looking to do
anything hardcore will not run, although COD2 and SC2 run fine on the current one if booted by bootcamp
Photo and Music
if photo, the photoshop will need the 4gb of ram to process things, and with shit like content aware for CS5, 4gb is needed to run smooth
Music
if recording, than the SOFTWARE support for such task is better on a mac due to certain programs being written for mac, ie: protools8
regardless, music recording would require additional hardware anyways
if your just trimming and mashing shit together like mp3s, a windows laptop does just fine
Im on a 4yr old mac, no complaints, and I can play l4d, SC2, run the photoshop, and record stuff, as i do hook up a mini board and preamp to the mac
if you were to buy a mac, wait for the icore ones, which according to mananetwork, who sent me a link to
www.macrumors.com saying the new ones could be out as soon as tuesday