I have and really like the PRM full belly skid. It's extremely tough and covers from the factory front bash plate all the way to the end of the frame. The mounting holes are recessed so there is no protruding hardware. You can get prices from thier own web site.
Count me in as a PRM fan. The plate is full-length, not just part length like the Ricochet... which is cast. The PRM plate is welded and VERY thick. And the recessed bolt holes are nice too, which the Ricochet and Aluminum Products ones aren't. Oh, and the edges of the PRM plate are smoothed, unlike the razor-sharp edges of the Ricochet. I sent back my Ricochet A-Arm gaurds after they sliced up my fingers while installing them.
PRM isn't cheap... $175 for the full belly skid... but I think it's totally worth it. I'm going to replace my beat up Yamaha plates on my Grizzly with PRM stuff sometime this year once I have the money.