I agree!!!! i personally had a choice just recently to pick between the 7wsm and the 7mag and right before i mad my choice i went and looked @ the ammo for both and i picked the 7mm remington mag simply because of the ammo selection..... and who knows if the 7wsm is going to get big or get to the point were they are rare!!!
ORIGINAL: Rammer
I'd personally stay away from a 30-06 and get the 7mag between those two.
Out of the short mags you may want to stay away from the 7mm WSM, it does not have the following that the 300 and 270 has. The 325 is the newest one out, and its hard to say if it is going to catch on or not.