I'll probably wait for a sale on all of these summer of arcade games too. Limbo looks good, but I have artsy indie puzzle game fatigue right now. Hydro Thunder should be fun, Lara Croft might be okay, maybe I'd get Castlevania if it were $5... Don't care about the other one.
I'll be saving my points for Guwange, Shank, KoF2002UM, and Clash of Heroes.