magic lantern makes a good guide on the F4s.
i recommend getting a spare viewfinder, strong strap, and dedicated ttl flash.
the lenses i use most are my old venerable 50/1.8, 35-70/3.3, and 70-300/f4.
as for film, i mostly shoot B&W. FP4, HP5 are 2 of my favorites. i have 2 bulk rollers, one for...