try wtharveydotcom for some examples of tactics based on players or openings
Studying Chess?

Convekta has some tactics software with different opening themes, like 'Tactics in the Gruenfeld'. I think they have one for the Sicilian too. I don't care for the Gruenfeld one, but it's mainly deficiencies in the software that bother me. I think the general idea of studying tactics that arise in the sort of positions you commonly encounter is a great idea though.
Are there books that give examples of common tactics that come up from certain openings? Like, if one wanted to study the tactics that arise during hte Kings Gambit do they have books that do that sort of thing?