Looking at the dates for Unofficial and the RHCP concert, they coincide. The OP will be in for a wild ride
		
		
	 
Ah, so they do.  
OP: You must come EARLY on March 2nd then.  Friday is Unofficial St. Patrick's Day.  Everyone starts drinking about sunrise and doesn't stop.  Campus gets ridiculous.  You shouldn't have any problem finding parties if you walk around.  Most of them will be between 1st and 6th streets, and south of Green.
Bars:
Legends - typical chill bar, darts and pool too
Brothers - similar to legeds, darts and pool, but a bit more dancing and more active overall
Joe's - dancing
Firehaus - pretty similar to Legends but less to do and slightly higher class
Murphy's - chill Irish pub, pool and darts in basement
Station - frat bar
Gully's closed
Bar Louie - upscale chill bar, IMHO boring and expensive
Clybourne - dancing, I boycott the place cause of the asshole bouncers and management
CO's - cheap drinks, freshmen sluts, some dancing
Kam's - similar to CO's but more sports orientated
Don't bother going to downtown Champaign on the 2nd.  Stay on campus!  It's wild.  Oh and watch out for cops when jaywalking.  They ticket that a lot.