As of 6 - Feb - 2011
Total combinations are : 17576
At TV Coproration there are 12008 (can be purchased with higher fee than normal of course)
Free with reg fee are 442, the following :
bqv
bxv
byv
cqv
cuq
cvq
cvy
cyv
czi
czv
dqv
eqy
evq
evx
exq
eyv
eyx
feq
fvq
fvy...