I don't know much about Leaktek, but the ELSA Gladiac GeForce 2 GTS card (manufactured by Visiontek) that I have right now has excellent 2D on my 19 inch NEC monitor at 1600x1200x32 @75 Hz resoultion. As for a good deal on the web for an ELSA, buy.com has it for $199 and there's a $30 off any $150 computer purchase coupon floating around out there. Look for the coupon at a site like slickdeals.net.
Edit: I also used to have a Voodoo3 card previously and my ELSA is just as good, if not better, at the resolution mentioned above. I think the general consensus seems to be that the ELSA/Visiontek and Leadtek cards have the best 2D amongst all the nvidia cards out there.