Odd. I don't use my optical drive that often, but I've never had the slightest issue with my Lian Li fold down cover (linked in the second post). It matches the case perfectly and works flawlessly.
You might also want to take a look at the Watercool Heatkiller blocks, as well as Stinger Waterblocks (may have to google around a bit for an internal view).
Both are a departure from the pin matrix approach, and both have shown themselves to be excellent performers. (even superior according...
The Ultra m998 has 8 expansion slots as well.
http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2765147&csid=ITD&body=MAIN#detailspecs
I know it says seven, but it has 8. I have one of these. It's a very solid and versatile case. I've seen them on sale for much...