Okay, a few things.
One, don't do consecutive MAC Addresses. Go random if you can, if only because of all the people doing consecutive will cause you to get repeats and therefore never get hit the 10 limit, or get 10 different per attempt.
Secondly, you'll only get 6 on the first Mac....after you'll get 3, and if you're lucky you might get 1 more on the third. Generally, you'll just get game stuff from then on.
Third, and this really only matters for those with multiple systems, but shut the wireless off on all the others unless you want to tag yourself with every Mac.
I suggest checking out GBAtemp.net and looking in their master threads. You can find almost any answer you need there. Easiest way to do Homepass is using the Router method. It's not machine specific and you can daisy-chain routers if need be.