RE: Thinking of buying an ATV recommend one!
hope you have lots of time because this kind of topic usually gets a lot of replies and everyone likes their brand (Ford vs Chevy; Remington vs. Winchester; Matthews vs. BowTech etc.)
I personally have a Yamaha Kodiak and have no complaints. I know the Prairies are rated pretty high. I like the idea of IR suspension, but have heard it can cause some problems under certain driving conditions (higher speeds I beleive and it can decrease clearance?). A lot depends on what you will be using he machine for.
if you get the Outdoor Channel, I would suggest watching ATV Television. They have subjective reviews of most ATVs throughout the year. I think the reviews may be on their website also.
I would also search the Web for ATV message boards (I have found a few that are quite well reponded to)