Those will work with CRTs, but you will need any older computer to run them. Namely you need a 7000 series Nvidia card (or below) and Windows XP with old Nvidia drivers.
Personally, I'd probably take the gamble on the Zalman before investing in antique computer parts.
Really? Damn, thought old shutterglasses + CRT monitor was one of the proposed cheap solutions in my original thread ages ago >: ( http://www.mtbs3d.com/phpBB/viewtopic.php?f=43&t=13418
Actually, there are a couple Zalmans for similar prices on Ebay, and not TOO much more for the 24" model, time to go sell all my blood and buy one |D ( JK, only a couple pints... and just the plasma. )