To all the engineers out there, whats the preferred card?

Got a nice PC, Core 2 Duo, 2.33Ghz, 3GB of RAM, but the current 8600GT isn't handling models real well in solidworks.

Any tips???

Tried a nice quadro?

Yeah, but they're like $200 --> $1000, how do I know how far to go, I am very unfamiliar with these cards :(

dual 8800GTX cards? :)

Quadro.

Multiple Clip Regions. Subpixel precision.
That should be sufficient reason to buy a Quadro rather than a GeForce. If you're ever rendering more than one scene simultaneously (eg, multiple views), then getting a card with multiple clip regions should be a no-brainer.
And don't even bother looking at FireGL. Last I looked they didn't have either of these (though admittedly this was quite some time ago).

Solidworks.

Where should I buy one - no-one seems to have them in stock ???? Pain in the arse

i guess just find someone that has a price for them and ask for the lead time.

AusPCMarket seems to have quite a selection.

quadros go quite frequently for dirt cheap in some cases on ebay.com.au