I use eyefinity and have tried a few different adapters and the DP to VGA seem to work best ATM. just look on Ebay for a big brand one Eg dell, hp, lenovo, toshiba and acer.
Any of those should work fine.
My buddy uses an dp to vga apple branded adapter and it works great for him cannot comment on the DP to DVi tho
This is a portion of the conversation with my buddy about the PCI-Express power cable on his 1950PRO Zune Owner's Club! BountyHead - BOOM!Buddy: but the latch wont click Buddy: I tried the one it came with... and 2 other ones...it , just won't catch Buddy:I had to gorilla glue it on there