First off, great choice! I recently purchased an ESP Eclipse II in Aged Honey Burst, and it's become my favorite guitar for low tunings. My suggestion would be to find an Eclipse II near you, either on Ebay or in a music store. The new E-II's are supposed to be the same thing as last year's high end LTDs, which means slightly less quality. I've never played a CTM I, as they don't sell them in the US, but I've heard nothing but amazing things about them. The 4 knob-LP style is awesome, and they come in full thickness versions which could be cool for low end thickness, though I think it's mostly aesthetic. I got mine for $1600, which is about what you should be spending. I've seen them go for $1900 on Guitar Center, but that's really the most you should pay. The new E-II's are similar in price yet not in quality, so stay away from those! Hope this helped.