I just got the early 2007 Raleigh catalog. The main differences between the M80/Mojave 8.0 is the 2006 version has Shimano Deore front derailleur and the rear derailleur is Shimano LX, with a Deore 9-speed shifter. The fork is a Manitou Trace Comp 80mm travel with preload adjust.
The 2007 has SRAM SX-5 9-speed shifter, SRAM X-7 front and rear derailleurs.Plus a SR Suntour XCR 100mm fork with preload adjust and lock-out. I would go for the 2007 model, if I was buying one. It depends on which components you like better.
One note for now: This early 2007 catalog doesn't have the dual-suspension mountain bikes in it.