Hi Folks.....My company will  be getting a new work station soon and I was hoping
someone could help me in  choices pretty please.

Its a Dell T7500
Dual Xeon 5650 2.6GHz
12 GB Ram

What would be the best graphics card to use with Poser10, Carrara8 and other 3D progs?
and why? Boss likes the look of the Quadro FX 4800 but its
very expensive and I wondered if that extra cash would be better spent on a faster processor
or more ram...next level of Ram is 24GB 
These are the choices they provide below.

768MB PCIe x16 NVIDIA Quadro FX 1800

1GB GDDR5 ATI FirePro V5800 -

1GB Ati FireGL V8700 - 2 DP, 1 DVI

2GB GDDR5 ATI FirePro V7800 - 2 DP

1GB Nvidia Quadro FX3800 - 2 DP,1 DP-DVI

1.5GB Nvidia Quadro FX4800 - 2 DP, 1 DVI

Two 512MB Ati FirePro V5700 - 2DP, 1DVI

Two 768MB Nvidia Quadro FX1800 - 2DP,1DVI

Dual 1GB GDDR5 ATI FirePro V5800 - 2DP, 1DVI

Two 1GB Ati FireGL V8700 - 2 DP, 1 DVI

Dual 2 GB GDDR5 ATI FirePro V7800 - 2 DP, 1 DVI

I am grateful for any insight...thanks