I got an 03 SP 700. I have had some problems, but mainly cuz I ride it so hard. I've rolled it twice and yet each time was still able to ride it out of the woods. It does suck gas though, more than it should. I have a home-made lift about 1 1/2" and adjusted the rear shocks according to fit 27" Titan 589s. Great tires in mud, dirt, sand but hard to turn going slow and not good at all on pavement. I have also invested in a front brushguard, saved me lots of $$$ when I rolled it and also upgraded the 03 mudguards to the 04s. Much better looking and much more durable. With current set-up I can do about 56-58 mph wide open. Besides rolling it and setting it over on its side a few times in the snow only damage from normal trail riding has been a few axle boots. I have upgraded boots I do rip/tear to gorilla ones, a little bit more $$ but stronger thermoplastic.
Most likely will look to pick up an 05 TLD Predator. TLD looks a little bit better setup for the riding I do, mostly woods and logging trails, no sand in PA. Also will look to pickup another Sportsman. I'm on the fence about the 05s. Not sure if I like the new styling yet but it should grow on me. Much nicer features on the 05s, wider track, work lights, easy access to radiator. I don't think I'd get an EFI do to price, over $1000 more than carb 700. I most likely will look to pic up a 05 600 next fall as a leftover, hopefully.