Same scope as I have....grab the X5 Powermate. You can get upto x7.7 of the FL depending on how far away from the focal plane of the camera's chip you set the lenses in the powermate. However, to be practicable with an 8" scope, I wouldn't push it anymore than x2-x4 for normal nights. That'll still give you an effective F ratio of F20-40, which will really make any planet look good
Goto Bintel and have a look in their eyepieces section. That's where you'll find them.