okie, for you to fit that bip3 into any case, you need a crap load of modding. you can put it on top, line up to the front, or on the bottom. if your gonna put it on top or bottom, u need to mod ur case so that there's holes for air and such. as for the VGA block, its not that great, and ram needs to be sufficiently cooled. RAM on the video card isn't blazing hot, but a few small ram sinks will do. and the case fan should move a decent amount of air, but my first thing would be noise levels. case fans dont' really do much, if you have uber fans as case fans, all u'll have is a fraction better temps(which would be more minimal on water cooling) and a huge wind tunnel thingy. so look for quite fans.
<font color=red>gforce mx100/200 @ 230/440 =]</font color=red>