I'll sell you one for 0.12 BTC + shipping and walk you through setting it up.
I see people using these hubs and stuff, for multiple ones. How hard is it if I bought like 9 of them, and hooked them up to run 24/7? Will it work on an old computer? And how much startup costs? I have the computer, thats all.
If you had 9 of them running 24/7, you'd mine about 0.09 BTC a day (from what people elsewhere are telling me)