Charles, it depends on how much you want to spend, really. I've never heard of the Frame Shop In a Box, but just reading the description of it makes me skeptical and even at what, 32% off it's still $340 US!!? That kind of jing will get you a nice little mitre saw and enough trim from your local Home Depot to make hundreds of frames, or if you want to go even cheaper, just get a back saw and mitre box. The only thing you'll have to do is reinforce the corners of your frame with a small piece of 1/8" luan ply on the backside after your pictures are mounted. If you start looking at biscut/plate joiners or corner routing to join the corners, you're running into some $$$. A cheap biscuit joiner is perhaps around $50, a decent one will cost $200+.
Anyway, I'd have a look in one of the box stores, they've got tons of profiles in the lumber section that you might consider making frames out of. Hey, maybe you can borrow a mitre saw from someone.
