I'd also suggest the Robogear stuff. Very cheap plastic toys/wargame minis from Russia. Not easy to get from online stores, but there are a couple of sellers in eBay.
I have a Condor (a little flyer) and a Hunter (a jeep), and I'm thinking of getting a Hornet (another little flyer). If you don't use the oversized weapons, and with a proper paintjob, they can look really nice.
