The last few week's I've generally been a pain in the butt asking around about fins and booms as I'm changing all of mine.
Im keeping all my 2012 iS's and NS F2011's till next year and concentrating on getting good fins and booms now. Got AL360 E3 booms for 5.2m to 8.6m, and about to order a big Tecnolimits XTR for the 9.5m.
Still unsure about fins. I cant really stretch to Carpenter Fins or Z-fins, so narrowed it down to the new "green" Gas-Fins, F4 fins D2, Select V-max and possibly Techart fins. All pretty good value and ready available-ish. I only need 4 fins, but still a fair outlay, so trying to get it right