I purchased and played with Blitz2D too, when the first version released for the PC. Before this, i tried out DarkBasic but i dont really liked it. Next i purchased the first version of Blitz3D which was really powerfull at that time! I started on a own small 3D engine with a friend but before we finished our engine, we moved over to PB PC and our project died.
So Blitz3D is a nice language, the only bad point is that there are no ( ) for commands like Color... As far as i remember you have to trype:
Color 255,255,255 << not really my style but as long as it works, its ok :D
instead
Color( 255, 255, 255) << i like this much more