I've used AE-1s, T-90s and New F-1s and over the years dozens of FD lenses. I still have the F-1s and a few lenses but they haven't been use for a while. I'd recommend the New F-1, it's a lovely camera to use, built like a tank and available on eBay for next to nothing.
There have been several cameras named the F-1. The original is from the '70s and was replaced by an updated model, the F-1n. The New F-1 was introduded in the mid '80s I think. With standard prism it is a fully manual camera, with AE prism it Aperture Priority becomes available and with the Winder FN or Motordrive FN Shutter Priority becomes available.
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