Hey no , thats cool man. Its much like anything else really...if you have an issue with something from a Company, its hard to go back to try something else.
Well, maybe another day you'll give it a try, I like the two that I run.
Looked over the list you posted, for that I'd go full tower and not mid-tower.
However, they don't sell the Coolermaster HAF 932 (HWC did review on it) which really sucks because that Case can Handle just about everything.
Soooo many options for WC'ing and such.
Now I have a suggestion from what I saw on the site, an old Classic (and a source for my first WC'ing experiments). The Thermaltake Armor (Full Tower), has more than enough room and Airflow to get what you need done.
Komplett.ie - Thermaltake Armor Black, Aluminium Front
It is a tried and true design, yeah it is no longer the best on the block, but its lasted this long by being a damn good chassis for what its worth.
Now, if you got the money to Spend, Silverstone is the Porsche of Full towers and Mid-towers....you could get this one;
Komplett.ie - Silverstone Temjin TJ07B Black
A lot of people love this one, and for good reason. It is solid, lots of room, good airflow. All depends on the budget. For fitting the 9800 GTX's I always recommend Full towers, however, there are some Mid Towers (Those with removable HD Cages and such) that you can squeeze them into. Just look into reviews and see what the dimensions are inside.
Good Luck, hope this helped somewhere,
ST