got fx 8350, gt 610 2 gb, 1tb 7200 rpm 64mb cache wd blue (yeah you can't but for instance 320gb as fast and for a good price), asrock 970 extreme 4, additional cooler, nice case, 16gb of ram and OCed to 4.2 it runs 11 smoothly with right d3prefs and a plugin, properly oced prolly could run 1 more, who knows, cpu is at 37*C, cost me like 730$ in my country, with 11 accounts the cpu ocasionally gets to 100% but only at times so it doesnt matter much i think, it returned in 1,5 month with 17 accounts runnin', if you know how and you are willing to spend more time it could be even less, if you want to try your luck and want to gamble could be even faster but i chose the "steady income" way, imo the already mentioned fx is the best cpu for the money, gonna assemble the 2nd identical one in about a month or so... maybe i save up some money on rams, the rig with bots gives me an awsome salary for 3 hours of work every 3-4 days.. i don't complain, i7 even though can run 14 bots it is twice the price so why waste money? it consumes much less power but still, it can't be that much more