Originally, I had most of the metal SR minis along with the original boxed cyberpunk and a few other games, but I'm not much of a painter so they were ugly silver blobs on the table.
These days I've replaced almost all of them with pre-painted plastic minis from "that-other-company" that I bought from e-bay specifically for SR. There are a ton that fit well with Shadowrun. Since they are so light and flexible, I can drop all my dwarves in one ziploc bag and label it, do the same for drones, spirits, humans, females, trogs, etc. I still keep a couple metal trolls since using Gamorreans in their place gets old.
Just in the last few months, I have been trying to get my GM Kit as portable as possible and have created paper minis for the NPC mooks (organized, bagged and labeled as above). These are A-frame minis printed on cardstock and then stuck in little plastic bases as needed. While I still like having a 3D mini for the PCs, having a wide selection of "bad-guys" that take up almost no space in my bag has been a boon.
Vehicles are just top-down printouts of various vehicles, especially emergency vehicles printed on cardstock. I keep a set in three different scales (2cm = 2m, 2cm = 1m, 1in = 2m).
As for the map, it depends on who is running for our group. Most of us own 1" maps, but I made a 2cm map by printing 12 20cm x 30cm (7.9" x 11.8") grids and laminating them into one 80cm x 90cm (31.5" x 35.5") map that folds down to 10cm x 15cm [EDIT: It actually folds down to 20cm x 30cm or 10x15 squares] for storage. I really like the smaller squares. 2cm = 2m lets me cover more ground outdoors and 2cm = 1m is perfect for indoor scenes.
