American pocket watches-specifically early stuff(pre-1880s), certain Waltham models and/or grades(I have a running joke with a good friend about the number of 1883 model Crescent Sts I have), high grade Illinois 18 size and Getty model watches watches, high grade private labels from any maker, Kentucky private labels of any grade or condition, and anything weird or interesting that strikes my fancy.
As an example, this is a Waltham 16 size 1860 model "American Watch Company" grade from about 1864. It was likely on of the highest grade watches in the world at the time. I need to find a nice 18K case for it(it's currently in a presently but very likely unoriginal coin silver case).
I have for the past few years been collecting Macintosh computers. I started off with G4-era towers, but have been moving increasingly toward high end 68K systems(anyone have a Quadra 840AV lying around?) and the very early compacts. I'm also fleshing out my PowerBook collection. I'm currently fighting with getting a PowerBook 170 fully operation, but also am looking for a few other 100 and 500 series models along with a 1400c.
I have collected cameras for years, although useability is an important consideration for me. I tend to shy away from oddball formats because of that. I even avoid 5x7 in sheet film cameras since it's significantly harder to find than even 8x10, and is more expensive by a long shot than 4x5. My interests are all over the place-I love Graflex cameras, although also have a Burke and James 4x5 flatbed view camera that I tend to use more than my Speed Graphic because it's lighter and more "flexible." I have a couple of pre-WWII 4x5 lenses, some of which have a lovely glow about them, but picked up a 1980s Rodenstock 150mm not too long ago for more predictable color work. I LOVE Rolleiflexes. I buy Japanese SLRs to use, but also tend to chase rare Canon variants and accessories. Grudgingly, after being given a Nikon F3, I've worked backwards and added both an F and F2 along with a handful of lenses. My workhorse camera is a Bronica SQ-A, although I have a chance to buy a Bronica S kit(1960s) and will likely pick it up-they are a bit clunky but the styling is beautiful and they have Nikkor lenses.