wheel bearings?, need replacing Options

[Pvc99gT]

anyone have any info on this?? i was told me drivers side fron wheel bearing needs to be replaced, i hear a crackling/grinding sound when i drive... how do i fix it? or do i need to go to a shop?

[Pvc99gT]

they want like 500 to replace em. that is ridiculous! it cant take more than half an hour to do it, plus im good with this kinda thing. if i know how to do it or someone has told me, then i can do it no problem, just need to borrow my buddies jack stands. either way, the place that quoted me is shady as hell. they installed my underdrive pulley and while they were taking off the old pulley, the screw broke cuz it was rusted a bit. they didnt try to get the half of screw out or anything they said it was tough luck unless i wanted to pay a few extra hundred to have them drill it out. they said there was enough thread to just put in a new, shorter screw (which cost me like $15) so for some reason i dont believe them when they quote me 500 on a wheel bearing, unless theyre gonna do all 4 of em, even tho only one is clickin or anything and i bet the reason its clicking in the first place is that they did a crappy job fixing it in the first place after i juiced my drivers front wheel. "worry free warranty" my ass. well anyway, what should i do? if its not on the ridiculously difficult side i can do it w/ instruction as long as i dont need some weird expensive tools. can i buy the parts i need at a store or will i have to go to a dealer or what? it seems on the harder side, but definitely do-able, can i get some more info before i blow that much money on somethin i can prolly do myself, and oh yea i wont be going to the same shop of course.