Thanks for posting the list, saved me a trip to newegg and the change to buy something else I didn't need
The thing with mining is that it is all about the cards, everything else can be cheap.
Older motherboard with lots of PCIx1 or better, wattage processor & hdd, enough ram and you are good to go. The less wattage your base system needs, the more that is available to the cards.
Do not under any circumstances skimp on cooling though. Best I have seen is a channeled openbox with the extender cables out and away from the motherboard. Each channel had its own fan (think shoebox with a fan at the end). Cheap and cheesy and won't win any awards but the combination of being away from the case plus a lower ambient temp and its own dedicated fan = cool card.