Like I mentioned above, I have the RT311 by Netgear and am very satisified with it. I have no need to change it. However, If I was making a new purchase and could get as good or better deal on the SMC I'd probably get it instead, just because of the extra features. If you dig deep enough they all have their problems.
The forums at DSLReports have good information (use link above and find the product and click opinion board). I would imagine any issues with static IP and the SMC would show up there, I didn't come across anything when I browsed it a few days ago... but I wasn't looking for anything in particular, so, I may have missed it.