First thing I recommend you do: Get the MB-20 four AA battery grip, if you don't have it already. The reason being is that it slims the camera down quite a bit and makes it lighter. Load it up with four Energizer Ultimate Lithium batteries. You will have decent AF speed when you need it, and a decent frame rate, if you decide to shoot it in Continuous mode. Personally, I only use single shot mode on all of my motor driven cameras (F4, F2AS, F, and FM2n). Every single camera's motor drive contains the lithium batteries.
Secondly, get some rolls of Velvia, Ektar 100, etc.
Thirdly, go out and shoot. Maybe shoot it alongside the Rollei kit and figure out which kit is best for the situations you find yourself in. You may find yourself spending more time in the 35mm section of APUG, as well. If I remember correctly, I think I've done a lot of photos with my F4 bodies, as evidenced by the number of images I've uploaded to flickr. The most analog photos on my flickr have been done with an F4. Second, F2 series. Third, FE/FM series. Then comes the F. After that, it's Nikomat, F5, F3, and, finally, non-Nikon film cameras.