You can get a new Pred for a lot less than $6000. The 07 pred did not change anything major from the 06 and an '06 pred can be had for around $5200 at a lot of dealers. That $1100 savings over a YFZ will make for a lot of mods.
But ya if you can wait, need to check out the new 525 Outlaw or wait a little longer and see if the new Preddy 525 comes out in 2007.5.
2007 Outlaw 525 (#315Q) AC Racing Blackline ProPeg nerfs, Wilson Racing suspension, Precision steering stabilizer, Flexx Bars 15*, Rath Racing anti vib mounts, Rath Racing MX grab bar w/supports, Oury, Pit Posse Outlaw shifter, Vapor computer, JD Jet kit, big O-ring, YFZ throttle mod, Pro design filter, CT Racing full exhaust, RAZR 2, for sand-20x10x10 Edge on Douglas .160.
2007 Predator 500 LE
350 Raptor, 2008 250 Raptor, 2006 Jetmoto 150, 50 Raptor
2007 Outlaw 90(#384M) 2008 Class A 14 and under state champion
2006 Predator 90 (#705M) 10 and under 2nd place in state