Syd,
I have owned a few 300 wsm and they are great shooters.If you realy wanna step up preformance I would look at the 300 Ultra Mag,if that is to much look at a .338 win Mag(I have found the recoil is stiffer inthe UM)or how about the new 325 WSM.
The new 325 looks to be a good one and will probaly become my next rifle.
If you real want power look at the .338 UM,375 UM or the 340 WYB
BBJ