Dual displays for a G4

[ppcg4mac]

I am looking for 2 screens (around 20") that use DVI for my G4, any suggestions are welcome, but please remember that i'm a high schooler with a minimum wage job. I already have a ADC to DVI connector (my card has a DVI also) and know that my card can do dual monitors. I have been looking at Dells, but they seem way too expensive, i plan to use these for years, so reliability is a big part, as i move my Mac frequently.

Thanks in advance for any suggestions, if quoting a specific model, please post a link