Yesterday I bought two adapters so I could use my old film lenses. One of the reasons that I bought a micro 4/3 camera was to be able to use my old lenses on a digital camera. Well, it works every bit as well as I had hoped. When I bought the camera I bought an adapter so I could use OM system lenses since I have several. Now I have adapters to allow the use of my Nikon lenses and my Tamron SP 500mm f-8 Adaptall 2 lens as well. That makes it a 1000mm lens, excellent for wildlife photography with a tripod. I'm also favorably impressed with the quality of the photos made by the E-PL1. This has all worked out well. I heartily recommend this type of setup for photographers with a lot of old glass.
Hal