Quick question for the more experienced....

I'm looking to get a PS2 for my dorm room this year. I don't have much room and would like to save space by hooking it up to my computer monitor, rather than getting a TV (the roommate's got one already). My question is, what would I do for speakers? Any way to hook up a pair of headphones? And any reccommendations for a specific PS2 - VGA adapter?

Thanks!

~MJE~