Hello, I have a Trek 830 I use to get around my college campus. I know it's not exactly "commuting" but I figure the equipment would be more or less identical. The campus is very hilly with mostly paved roads, and I take the bike on gravel and wet grass on a fairly regular basis. The roads are also not in the best condition so I usually hit bumps along the way. We also sometimes get heavy rainfall in the winter, which combined with the hills, makes for a precarious ride. I would like to outfit my bike to work better in these conditions. Currently my tires are due to be replaced, and I'm considering a front fender (I have a rear rack which happens to keep the rain out fine for me). If anyone would like to recommend tires/fenders/anything else and where to buy them, I'd appreciate it.