I've just bought one of the cheap Behringer pedals. It's the OD100. Great little overdrive for £15.
It's the Nailbomb in the bridge of my Peavey cr@pocaster into the pedal on Overdrive mode (it has OD and DIS) with about 40% drive. The stomp kicks in after around 30 seconds. The amp model used on the amp is the Marshall 70's (think it's a Plexi). I fingerpicked the quieter part and used a pick for the stomp bits. Please excuse the playing, I've only just recovered from RSI, the guitar is a biatch to play in places, and I get really nervous recording into a Mic. Don't know why :P. It's a basic PC mic too, so the quality isn't amazing.
-Danny :D