Originally posted by Epoch
http://www.edmunds.com/
http://www.kbb.com/
Dunno. Actually seems kinda cheap! 
I'd go and take it to a trusted mechanic, though, because that does seem kinda low.
Bumper... umm...to replace, maybe like $250 painted? That sounds reasonable...
Though I wouldn't worry about it too much unless the indenetation is much over 6 inches in diameter. You could also probably just knock it out too...
Yeah I would totally have a mechanic look it over. I would also have my friend get the vin number checked on carfax.