i worked in radio for 8 or 9 years; the radio station i worked for was purchased by a larger company and things like that were lost in the mix. i started off doing tags at the and of toyota ads and kept at it until they started giving me commercials. any type of ad you can conceive i've probably voiced once or twice. club ads, car dealers, lawn services, drive up beer places, so many i can't even recall 90% of them.
the program director for the station i initially worked for read all the books on commercial production and had been doing ads for years when i was born, and i learned most of what i know from him in addition to my owning reading and learning on the subject. after all, you can study something your entire life but until you do it you never fully do anything. i started off on a computer with the old SAW studio (people often laugh when i admit that) and then progressed to cool edit. i've heard that adobe audition is good but there's never been anything i haven't been able to accomplish with cool edit. when it comes to voicing, start to finish producing, and editing, cool edit is all i've ever needed.
i have an electrovoice re20 and a sennheiser 421, which i run into a korg d1600 which in turn runs into my dell pc with cool edit 2.1 running strong.
in addition to producing commercials voiced by myself, i've worked with dozens of clients over the years and am as accommodating as humanly possible. also, and this is a big thing with me, i have always been able to proudly say that i can turn around an ad quicker than just about anybody. the radio station i initially worked for had only a handful of people on staff so when it came time to produce something you went for it - find the perfect effects and just the right music bed, be sure the voice is compressed and not too soft or too loud, mix it down and email it to the client. i can count on one hand the number of times i had to redo an ad. so if a client needs someone to edit a commercial or has a specific music bed in mind, that can be sent to me and i'll send back a fully produced audio file. i can add music to a voice file if the client desires that, but i'll need a little extra time to do it.