Look at the Dynamite shocks as well. They are threaded all the way down and can be dialed in VERY easy for racing. Depending on whether or not you hit the track, this may not be as important. When I just re-built my Traxxas Big Bores I added in bigger AE spacers to get a hair lower. This will help me with the high speed rollovers around a hairpin slide.
The Trax BB also have Titanium Nitride coated shafts which I honetly reduce abrasions. No matter the shock I always choose a nice set of shock socks (for the TMaxx since it takes the most abuse).
By all means, get the Big Bores if you can throw down the cash. While you are at it, get the RPM plates and a better set of springs as well. 50wt oil all the way around with Heavy plates seems to be a good combo. But I am also using the progressive springs. If the Big Bores are 'tuned' right from the word go, your unsprung weight values will be where you want them.