DELL Help please

[BottlesOf]

I plan on posting a more extensive buying question later on, but for now I am trying to decide which Desktop I'm gonna buy.

I think I'm deciding between the 4700C (price seems right and I like the slim look) and the 8400. I don't think I need the power of the 8400, but it seems that there are more graphics card options with the 8400. For like $150 you can upgrade to a graphics card with dual dvi output. I plan on having 2 monitors sometime in 2005, and want this capability in my new computer. Since the 4700c doesn't offer this card, I'm thinking it may not be able to support such a card?

Does anyone know if this is the case? Can i get a 4700C and somehow add the card myself without voiding a warranty or overloading the computer?

Any other suggestions?

Thanks,

JBB