Ive got some time and Ill give it a crack.....You are going to want it made in Illustrator. Your logo needs to be able to grow with your company. Yeah, you think that you will just want internet marketing ,next thing you know you are talking to a guy and asks you for a business card. Then people will want to do local pick-ups and you find out that a buddy is an ace at installs. Now you need a Sign. See where this is leading.....
If you get a PS design, it will be more time and $$ for someone to turn it into a vector file. That and if the work has filters and blend they might be able to be accomplished in Illustrator.
Im not trying to be condescending, from what i read throughout the post i figure an explanation was necessary.