I was looking for the same kind of thing too since my cable box is only composite out. I found this composite -> hdmi at amazon with pretty good reviews...
Got my shiny Raikou today. Strolled in with my girlfriend and we pulled out our DS's and downloaded for three games. Wasn't ashamed at all walking in (21). :) Thanks OP! Also the gamestop guy was nonstop talking to us about pokemon, EV's, and IV's.
To those having problems loading the page I was able to bypass it by searching Dante's Inferno in the search bar. Put you mouse over the picture of the game and a button that says quickview should show up. Click that, from there some javascript pop up comes up. Select the format you want. Add to...
Thanks a bunch OP, I felt bad that I missed out on Katamari earlier today for $20 because I was on the fence about it. But I've wanted to get the collector's edition of this game for a while. =]