I've got some pretty viable plans to upgrade my collection to better suit my needs. Details/questions after the jump!
Nikon 18-55mm (maybe)
Pentax f/2.8 50mm
Pentax telephoto? lens
Pentax zoom? lens
Nikon 55-300mm f/4.5-5.6 VR DX -OR- Nikon AF-S 70-300mm f/4.5-5.6 VR
Nikon film SLR
Nikon f/1.8 35mm AF-S
Nikon f/1.8 50mm (manual)
Nikon 70-210mm with old AF
So, some notes:
The last two Pentax lenses I listed (the telephoto and the unknown range zoom, paint wore off) are in pretty bad shape so I'd just chuck 'em in with the sale of the camera itself, along with the 50mm prime. The Pentax has been great—my very first proper camera—but I'd like to exchange it for a similar Nikon so I could put my Nikon f/1.8 50mm to work. I haven't done my research in this area yet, so if you have any recommendations off the top of your head I'd love to hear them.
It is with sorrow that I let my first DSLR go (it's been the ultimate pal), but the D3000 lacks several key functions I've decided I want. I've been bitten by the video bug. The D5200 seems like the clear winner in my price range, with its 1080p @ 30 fps, 720p @ 60 fps, internal stereo mic and support for an external stereo mic. I also look forward to the increased ISO range and general shooting resolution over my D3000. With bodies going for around $450, the D5200 seems like the man for the job.
The Nikon 70-210mm was given to me for free by a friend; whether I keep it or not depends on whether it's useful with the new film SLR I plan to buy. It's worth next to nothing so it stays if it can serve.
You can see on the 'buy' list I'm deciding between two autofocus telephoto lenses for the digital. I haven't put an awful lot of research into this yet, but I think I can narrow it down to one of these two, as my criteria are (a) 300mm minimum focal length, for motorsports, (b) fully compatible autofocus, and (c) affordable. If anybody has any input, I'm all ears.