Welcome to the forum Warped
The SD9VE, is merely the SD9 with a few corners cut to save a few manufacturing costs to make the sell price a hundred bucks lower.
Not a bit of difference in anything important like reliability and performance.
The few differences can be found here :
SD9 compared to SD9VE
As to a holster, I have concealed carried for many many years now, and have now found that the absolutely ideal holster is:
AlienGear Cloak Tuck 3 for inside waist band and
Aliengear Cloak Slide for outside waistband
epitome of comfort function and safety...and only $45 for the Tuck and $40 for the Slide.
Doc