IMHO, if you can avoid buying locally - sites like newegg.com are the best. Great CS and usually a great selection too. I HATE, HATE, HATE Frys, CompUSA and to an extent MicroCenter. (I know I've posted no supporting reasons, but I just don't want to be typing for 30 minute. )
I was getting severe headaches from the AMD heatsink/fan - the pitch was just ear splittingly loud at 48-52db when the CPU had any load. I had to do something and quick, I was popping motrin like tic tacs.
I ended up going with an aftermarket heatsink fan (Scythe Artic 64) that has 1 mm of clearance with the memory heatsinks - but it's a night and day difference. I hear the case fans more now and those are registering at 20-24db.