-Penny Arcade Vol. 2 so I can continue playing that series without actually paying for it myself.
-SSF2 HD if it ever comes out
-350 MSP to have lunch with Wombat
Castlevania: Symphony of the Night and save the rest for Ninja Gaiden 2 skins (I know it's only 200ms points and a meh investment, but I don't like skintight leather ninja outfits.)
Of the stuff out now, I'd go for Ikaruga. If I could have anything, I would pay serious coin for Guardian Heroes (Saturn) in 1080p widescreen goodness on Xbox live. I would pay more than that lame penny arcade game and like it.
I'd buy Penny Arcade: On the Rain Slick Precipice of Darkness but due to prices it'd have to be a 4000 point card. Ohohoho a jab at the price of an arcade game!
Why? Because the cool stuff found on X-Box Live in N. America is mysteriously absent from X-Box Live in Korea. So I'd break all kinds rules in the X-Box Live User
Agreement and make a super secret identity in order to purchase and download that Penny Arcade Game.
I hope the gamer tag "DoubleDragons" isn't taken yet...