Modern Star Wars 3.75" figs and vehicles, Unleashed, Legos and whatever else Star Wars related that floats my boat.
I'm seriously thinking about starting a Gammorean Guard collection. The Piggies are my favorite aliens and a character collection based on them shouldn't be too hard to amass, as there aren't many items with them on it. Probably the hardest item to get would be that ultra cool 14" statue from a few years back. I'm also seriously thinking about commissioning a Bill Cable One of a Kind drawing of the Gamorrean Guard.
Due to monetary issues, I've held off on collecting other toy lines. Its tough because Marvel Legends, Muppets, MOTU and LOTR have really impressed me. But I will buy a Sweetums Muppet fig if he's ever released, cause he's just too cool
I do get comic books every week and have quite a collection of those, both in my apartment and in my Nana's house back in NJ.
My wife's like Matt's and Morgbug's, she doesn't collect anything except Hard Rock Hurricane glasses, but she's not as anal rentive about them as I am about my collection.