Second screen can't run won't run

No, I run on a single 20" screen only. Standard layout. Sometimes I really have too little space in the browser, and thus have to extend it to the right over the timeline.

I come from an environment where we have dual screens on our AVID media composer, two AVID Express systems, our 3ds MAX graphics workstations, and even our FCP 3 DV and offline system (using an old Targa 2000 PCI card to drive the second monitor).

So this is the only system that I can not run dual screens on. I made a big racket about it for the first few months after buying it - the problemn is that the only Pinnacle-approved second display cards, are not available to me in South Africa at all:

ATI Radeon 7000 PCI - the local ATI distributors don't import MAC stuff at all.(wont!!!)
You can buy it from the ATI website as long as you live in the US!

So eventually I gave up on the dual screen - I've got a second 20" monitor (remnant of the discreet edit*) standing to the right of my Cinewave screen, not even plugged in to anything!

I thought I would be clever and bought a DVI to 15pin d-sub converter cable to connect the second screen to the Geforce 2 MX daul screen card that came with the G4, but only realised later that the card has a special kind of DVI connector that supplies power as well, only for use with the beautifull bur overpriced Apple cinema displays.

So that's the story why I'm still only running Cinewave on one screen. Does anybody out there have any bright ideas to get my second screen working?