The new Strats use a series/parallel switch which might get you closer to the Brian May setup (haven't tried one yet).
One small item that does a great job of generating the Brian May + AC30 cranked-to-10 sound is the V-Stack:
http://www.v-stack.com/bhm.htm . I own one and was really surprised at the results. Works great as a line-out to digital recording, and when run through a clean amp at low volume the sound quality is even better than running an AC30 through a Hotplate, IMO.