Quote: "1: Does darkBASIC have a interface like fpsc only controlled by basic?"
Don't get FPSC and DarkBasic confused! They are two very different products. FPSC a drag 'n drog game creator, while DarkBasic is a programming language. This means that you have to write code to achieve whatever you wish. Like this:
sync on
sync rate 60
hide mouse
make object box 1,10,10,10
color object 1,rgb(255,0,0)
do
yrotate object 1,object angle y(1)+1
sync
loop
If you compile that code in DarkBasic, you will see a colored cube that spins around.
Quote: "2: Should I buy darkBASIC classic or pro"
If you know that you will continue to use DarkBasic for a long time, I would say go for Pro. Else you will just find yourself purchasing it anyway if you go for DarkBasic Classic!
Quote: "3: (unrelated to darkBasic) Does T3DGC allow custom menus and models?"
Yes it does... But trust my word... Don't buy T3DGM