Re: I need a little help finding a case trimmer....
Without the micrometer adjustment, the stand, or the shark fin, the base trimmer is < $40, and case holders are ~ $8 ea or less, making it a very cost effective trimmer, if you're on a budget. I just clamp mine in the small bench vise on my reloading bench. If I did not have the vise, a simple wooden base would be easy to make. You just need to elevate it enough so that you can turn the crank. I've had no problems holding the caseholder on the rails with my left hand while turning the crank with my right. Wilson also offers a power adapter so you can use a cordless drill or screwdriver to turn the cutter. Without the micrometer, it takes a little longer to set up the trim length, but it is no less accurate or repeatable.
I really like the walnut/maple(?) base shown above. The maple(?) block is a nice touch, handy for knocking the cases into or out of the case holder.