I'm a long time Olympus user. Have an old OM-1, then I got the Centurion APS camera back in the mid 90s, and just got a µ Digital 600 (Stylus 600) for Christmas, that I'm very happy with.
Too broke to get myself a DSLR, but an E-series camera is the strongest competitor to the Canon EOS350D/Digital Rebel XT, which is at the top of my wish list at the moment. Cannot see myself getting a Nikon... but, then again, that might change...
History suggest I'm going to end up with an Olympus, though...