I'd like to make an aStore with the amazon affiliate program, but I would like to make it look as if it's my own store, and not through the amazon site. How would I go about getting one of those stores hosted on my own domain/hosting? Thanks.
Another vote for Associate-o-matic from me. I built my own site using PHP but it takes a lot of effort and in hindsight although I now know the Amazon API inside out, I would probably have achieved the same result using Associate-o-matic.
I don't know if its out yet, but there is a plugin for wordpress called PHPzon, from the same makers of PHPbay.
AOM doesn't really take a percentage of your earnings. If you install the free version, it takes 10% of your link exposure i.e. they will display their affiliate tag instead of yours. If you subscribe to the full version ($99 first year, $20 thereafter), you get 100% exposure plus some nice features. You should always try out the free version to see if its something that works for you before you subscribe (since I see no refund policy on their site).