I think the first thing I plan on getting, when I hit 500 is the Isabelle Mercier poster. I think it will go good in my games room.
I'd love to collect enough points to get that really nice set of chips they have (not that I really NEED more chips, but they look really nice), or, alternatively, the chip/table package.
But that's a LOOOOONNNGGG way off for me I think (barring any big wins)