I use 65# Power Pro attached to 100# snap swivel, never had an issue. Don't' use Flourocarbon your gonna loose $30-$40. Pulling all that metal/lead. The stripers don't care, they are in a frenzy when chasing it.
That looks like a nice simple one. I have this one and it works well. Has its own rope on a winder so you dont have to use another rod. Has worked for me because the weight of the "fish" can really knock some things loose.
I use one similar to the one mward has and I'd be willing to bet he hasn't used his much. Captains Quarters offers a good one too. They are a must if you are u-rig fishing and will pay for themselves pretty quick.
Gator is correct - last time I used it was last time I pulled out u-rigs - just before New Years last year when I could not get a bite on a jig and got tired of watching Todd catch fish around me on alewifes... Put a u-rig out, and had to get the retriever out less than 5 min later ;-/ It did pay for itself on that and another day about 2 years earlier