I noticed you are saying some " 3d animating/After Effects "
How little is this some ??
I can smell you need this rig for gaming and might use it once a weak for renrendering
In this case go for
Asus Rampage Formula Motherboard(Latest X48 Chipset+excellent OC +DDR2+Cross fire support)
DDR2 PC6400 or PC8500 (4Gigs) prices are very good and no huge difference from costly DDR3
E8400 or E8500 ocd to 4 will give the same performance of Q6600 ocd to 3GHz and much better performance in gaming
Graphic Card 3870 or 3870x2 or you can wait the new 4xxx serie.I think you can also install a single GTS512 on this mobo
150GB Raptor HDD
Additional HDD as much as you like
Heat sink and fan
Power supply min.750W
PC Power & Cooling Silencer 610W or 620HX (the 620HX if you prefer modular)
GA-P35-DS3R or GA-P35-DS4 (the DS4 if you need FireWire or eSATA)
DDR2-800 (PC2-6400) 2x2GB - Corsair or OCZ for example
Q6600 or E8400 (Q6600 if that 3D rendering will happen often)
WD6400AAKS or WD7500AAKS disk
Thermalright Ultra 120 Extreme + SFF21F fan + Antec 900 - if you intend to overclock
no cooler + Antec P182 - if you don't overclock
8800GTS 512MB (eVGA, BFG or XFX) or HD 3870X2
Creative X-Fi XtremeGamer (if you have good 5.1 speakers) - otherwise onboard audio will be just as good
If you get a quad CPU and plenty of RAM and a fast HDD, the 3d animating part will be fine. By the way, does your animating software support quads? If it doesn't you should either buy an E8400 and overclock it, or get smarter software.
best thing would be to get a top intel quad core. sense you budget is 1900 go for an extreme quad core because the extreme line has hyperthreading so it will be like 8 cores and i say 4+ gigs od dual channel ram at a high clock speed.. The graphic card is a little difficult sense you will be doing rendering because for rendering i would go for a workstation card like quattro but the workstation graphic cards are not the best preformers for games too. I would stay away from the phenoms right now till all the bad chips are out of the market and that will probly take a year to get them all out.