Re: Randall RG1OO
Seeing as I own the RG100SC (NOT THE G2 version which doesn't sound as good in my opinion), I can vouch for it being a pretty cool amp. The clean sound is really good for a solid state amp, and the chorus on it sounds great too. The gain channel is mostly a modern monster, but I've found I can get vintage-like tones on the Gain 1 setting with the gain low enough. You don't really need any extra pedals for good tones either, though I find my MXR 6-band EQ does a lot to help the distortion on the Gain 2 channel.
My gain settings are roughly Bass 6-7, Mid 7-8, Treb 5-7, with the contour anywhere from 8 to max, and it sounds great. With the mids and contour rolled back it can definitely pull off the Dime sound, especially since it's the amp he used, and Metallica sounds aren't a problem either.