nice to see people want me
makes me all fuzzy on the inside
also ive never seen the fx-6100 in action so i can only judge it by the specifications which are pretty darn good.
14 mb of total cache ,6 cores in the speed of 3.3 ghz with up to 4 ghz on turbo core , unlocked multiplier and being produced in the 32 nm line, all of that makes that cpu sound perfect on paper , so untill ill see some benchmark i can only judge it by the guts.
about the budget . its a pretty nice budget and i believe you can fit a core i5 2300/2400 with a good p67 /z68(future proofing)socket 1155 mobo(you can go with h61 if you want to save cash but i think you should get the p67/z68 so you could buy a core i7 2600k/a sandybridge-e cpu when the i5 2300 isnt enough) and it will be about 270 dollars too:
/i5 2400(same product ,higher speeds)-http://www.newegg.com/Product/Product.aspx?Item=N82E16819115074
p.s if you decided to go for a phenom II you should probably get the x6 1090t. the extra money on the 1100t is a waste, they just took the 1090t and increased is multiplier by 0.5 and you can do that on your own pretty easily so paying for a factory to overclock it is just a waste