I just received in the mail today a holster that I bought from RSR Defense in Israel, and it may become my favorite holster for my SW40VE...
I bought the one for the M&P/40 that they listed in the off chance that I could modify it to carry my Sigma, as I didnt want the passive restraint that the Fobus and some other Kydex holsters have. This one was only $29.00 shipped and has the trigger guard latch retention like the Serpa does.
I did have to modify the holster a little... there was a ridge in the area where the trigger guard goes that kept the pistol from sliding in all the way, but a minute or two with the dremel and it was gone. The holster is still tight, but you can draw from it easily. It takes a bit of a push to get the pistol in far enough for it to latch, but I am sure that it will give a bit as I wear it. The cant is adjustable with an allen head screw (Wrench included) and I opted for the paddle style, although you can buy the belt adapter for another $12.00. It is also long enough that the end of the barrel doesn't stick out of it, something that I disliked about several other OWB holsters that I have.