I was originally wanting Grim Grimoire a lot, but then I realized I barely played Makai Kingdom, Phantom Brave, Disgaea 2 (basically all my NIS strategy RPGs), so I'm not sure. I'm no fan of RTS, but since Grim Grimoire is getting good reviews, I'm becoming more and more interested. I'll wait for some impressions before I buy.
As for Hoshigami remix, I'm on the fence. I was originally very excited since I missed out on the game on PS1, and was hoping the DS version would fix many of the issues. However, according to RPGamer, it isn't too great (but I usually take them with a grain of salt). Still debating about whether I should buy the PS1 version for $30, or just get the DS version. The game does look cool (and I did like Stella Dues a lot, a game made by the same devs).
My only for sure purchase is Super Star Dust HD on PSN, but I might wait until next week to buy.