Help/Advice on choosing a pedal

Hey all, I've got a new amp (AVT100 combo) and I'd like to know what a good pedal would be to go with it. What I'd like is to have my amp set with a good rhythm tone/sound and then stomp on a pedal to give a good lead/solo sound or vice versa, have a solo sound on the amp and stomp on summat to give me a good rhythm sound. I don't know much about pedals but would something like an EQ pedal be what I'm looking for?

I currently have a boss GT-3 but I'm gonna sell it coz it was good for having lots of fx but none were amazing, I don't need so many fx so I'd rather get 1 or 2 single pedals that are good.

Thanks..

Check Boss pedals .... Go for a low gain one if you're going to use it as a booster for solos , and if you want a pedal that has a superior heavy distortion then it's the "Metal Zone".

I'd tread very carefully with the Boss GE7, I had one and it can make lots of unwanted noise.

I ended up selling mine !

I've bought a Metal Zone, haven't tried it yet on my own rig but I just tried it in the shop and it sounded great on inferior equipment.

I have a avt 50 with a Jekyl and Hyde pedal that offers seperate or combined overdrive and distortion. It has many ways to customize your sound. Sound quality is great. Two pedals in one that goes from slightly overdriven (blues ect) to insane (it will peal the paint off the walls) It has volume controls on both channels and works great for leads. I use it like this. Pedal off through the clean channel for mellow stuff like jazz, pedal off through the amp overdrive channel for a little more bite, Jeckyl side on (overdrive) fatter sound and volume boost for rock leads. Hyde side on for hard bitting leads with a volume boost. Both sides on to destroy your house and stun your band mates.