I haven't answered this yet because the only ones I can think of are a ways off but not unobtainable difficult. But oh well, here they are.
1) Once I'm in a larger house, I want a really nice game room. Preferably a nice basement, very nicely finished complete with small mini-kitchen/bar area. This would finally give me plenty of room for the 3 arcade machines I want to own: Golden Axe, Street Fighter II Championship Ed. and the crown jewel, a Mrs. Pac-Man cocktail machine.
2) I want to finish my PS2 RPG collection. Every time I think I'm getting closer, I look at my list of what I'm still missing and see just how far off it still is.