I looked for a good long while. Try autoanything.com that's where I ended up getting mine. I think they have one (i think it's an Inno) for like $150 brand new and their snowboard attachments are pretty well priced too. I got a yakima big powderhound that holds 4 boards.
I am apart of Northeast Bike Classifieds on facebook. that's where I found a full rack setup for my mountain bikes this past summer. I would suggest joining that group if your on facebook. Its a good way to get some good deals on that stuff.
Thanks guys, I ended up going to LL bean to get the rack set up. Now I'm just waiting for a good deal on craigslist to come along for the actual ski/board rack. Didn't feel like spending $180 on top of paying over $400 just for the standard base rack and all.