I'm kind of with Terrago. Most people here will probably argue otherewise, but I feel like Specialized isn't a good brand to go with to get the most for your money. I checked the stats on the Raleigh, and after a quick glance I didn't notice much different about the specs for these two bikes. I know some people who like their Raleighs, and most magazines usually give the bikes good ratings in tests. The Gary Fisher does have a steel frame, so you could have an issue if you really thrashy the bike and leave it out in the rain and stuff. Make sure to dry it out good afterwards. Durability-wise, I wouldn't worry about the material of the frame-It doesn't sound like your going to be doing multiple-foot drops or anything. I think your choice really comes down to which of these bikes looks the best to you(there isn't much difference in parts specs) and most importantly which of these bikes fits you best. I would avoid buying from the internet since it sounds like this will be the first mountain bike purchase for a while. Fit should be tour biggest consideration. Good luck in your search!

-Moab