I use an MXR ZW-44 overdrive and just love it. Yes it's the Zakk Wylde model, but don't let that be missleading. It's NOT a distortion pedal. It's simply a very nice overdrive pedal. I use it infront of my Classic 50 and in front of the dirty channel it can get absolutely crushing, and in front of the clean channel it can be buttery smooth to, punchy, to crunchy. The thing I like about it the most is how transparent it is. It really lets your guitar's tone shine through. I keep it set as follow's: Level: usually dimed, Gain: between 7-9 o'clock, and Tone: 12 o'clock. I'm not sure how it would work in front of a Fender, but it works very well in front of my Classic 50. It defanately takes a bit of tweaking to get the sound just right though. But hey, there's only 3 knobs :rolleyes: . So, if you do try it out, take your time with it, because it can do a lot of different tones.

Good luck!