Giant Anthem Advanced versus Gary Fisher Procaliber

Please help me decide whether or not I should sell my 2007 Giant Anthem Advanced (raced one season) and buy a 2008 Gary Fisher Procaliber. From my sponsoring bike shop I bought the Giant and will buy my GF at pro deal prices. I estimate that I'll have to pay about $800 more (taxes included) for the new GF vs what I can sell the Giant for. Here are some of the differences: The 2007 Giant Anthem Advanced is a top of the line full carbon bike (frame, bar, stem, seat post) with a Fox FX80 front fork, Fox Float RP23 rear shock, Mavic CrossMax SL-R wheelset, full XTR component set, XTR disk brakes; the 2008 Gary Fisher Procaliber uses the HiFi model geometry, aluminum frame with carbon seat stays, carbon handlebars and seat post, Fox F100 RLC front fork, Fox Flot RP23 rear shock, Bontrager Race X Lite wheelset, XTR front derailleur and crank, SRAM x.0 shifters/cassette/read derailleur, avid jucy ultimate disc brakes. Here's the links to both bike specs...

http://www.giant-bicycles.com/en-CA/bikes/mountain/429/26977/?collections_id=2

http://www.fisherbikes.com/bike/model/procaliber-xc

Thanks in advance for your advice.

--Greg.