My 2.165 cents (after NY state sales tax, of cource):
a) Even if you're trying to keep it plain, the fact that it's centered in the page and it only extends a little more then halfway down really brings out the plainness in a sad way. Add more to it, anything which looks good and fills up the page. The less there is = less options. People don't like a lack of options.
b) The whole black/white thing is unoriginal, but it could work if you had something in the background. Otherwise it's just screaming of unoriginality.
c) Make Order now smaller, and possibly a button. The bigger Order Now is, the more it shows the user what's on your mind. A user that thinks you're greedy won't trust or like you as much, and probably won't be as likely to do business with you.
d) I'd get rid of the
<< HERE'S A FIGURE THAT IS TOUGH TO FIND, ULTIMATE SON GOHAN! >>
at the top, and move it to the item description. The only thing up there should be SBC - Vol. 26 (or whatever the item's name is.
That being said, it's not THAT bad.