Blitz3D is a receiving abyssmal support from the dev and has been for quite some time now. B3D is based around an API that was released what... about 5 years ago? Darkbasic Pro on the other hand has all the eye candy features of DX9 and is updated on a continual basis. I like Blitz structure better and I think the IDE is much better IMHO and DBPro IS quirky but unlike Blitz3D, it not been virtually abandoned by it's devs. So if you are looking for a basic language that supports the latest DX9 stuff then you are pretty much wasting your time here and your needs may be better served by DBPro at this point in time.
Not everyone wants Blitz3D to use DX9, you know. DX9 is a waste of time for shareware developers. I would prefer it if B3D went down to DX6 or DX5, although I'm happy with DX7.