The front fender can be resolved a few different ways for almost any bike. I use a small fender that attaches to the down tube with straps, but I don't mind some debris, just try to keep it down, here's an example
http://aebike.com/page.cfm?action=de...=30&SKU=FE2513. Fuller coverage can be accomplished with a fender that mounts underneath the crown of the fork, and while some forks don't cooperate, it can often be accomplished easily enough with most, here's an example
http://aebike.com/page.cfm?PageID=30...ils&sku=FE4500. You might just look through aebike's fender section for a few ideas.
There are better fenders if the bike frame and fork have specific rack and fender mounts, but that is a bike these days that's more on the hybrid/commuter side of things rather than mountain biking, so you might want to look at other forum boards as well for those...good luck in your search.