-2 gig really is a lot but I suppose you need it.
-Do really need a SLI board (you might because you want to run powerful dual graphics or something, but if you just want to use 2 videocards you won't need a SLI board, a board with 2 8x slots will also do)
-I don't like Maxtor drives, they are noisy and not so reliable
-All psu's on the list seem to be ok
-get the cheapest fo both RAM options and check websites for compatibility when operating 4 dimms. Can't you get 2x 1 gig? That's what I would prefer.
SLI, I don't know so I suppose I do not need it.
Would you have something to suggest ? I just need
a workstation with plenty of RAM and the ability to run
dual screen. I used to own a matrox G450 card.
Almost any modern videocard can run dual screen. The way they do it might be different and using two videocards instead of one could be something you'd really like. You would probably be best of if you describe exactly what you want to do in the graphics forum, they'll recommend the best solution.