Heh that seat is really tilted forward lol. I think you should go ahead and buy a used one with that price range...well a good one. Anyways, Perhaps this though...http://pricepoint.com/detail/14518-315_MARCE6-3-Parts-59-Forks/Accessories/Marzocchi-MX-Comp-ETA-Suspension-Fork-'06.htm

I think 120mm is nice for both xc and especially if you do some DH.