I just ordered an Electric Power Tongue Jack today. It's the ULTRA 3500 and the price was $219.95 plus $20 shipping. I did a lot of research and decided that this was probably the best bang for my buck. I ordered it from Bluegrass Trailer Sales in Kentucky and found this unit on Ebay.
With the WD Hitch that I have and the heavier trailer, I decided that the 3500 lb unit was the best thing to do. It also has an adjustable foot that should help a lot since my trailer has the high lift axle
. We'll see!
Here's a picture of the unit. BTW, the ULTRA is the brand that Camping World carries (for a lot more money, too)