I've used the Tattoo Goo myself, and it works well, but I prefer the A&D (easier to apply - usually faster healing times). I just mention it due to Jammadave's post about alergic reactions to A&D.
I have about 35 hours of chair time (so far), so I've had a fair share of experience with healing hehe.
P.S. do yourself a favor, and don't drink before you get a tattoo. Its ok to drink a few hours after, but not before, during, or immediately after. Less of course you like to bleed and want to come back in a few months and have it touched up cause you bleed all the ink out of it hehe.
Also, if your new to the tattoo world, selecting your artist and shop is a huge deal. A shop should look clean, and more importantly SMELL clean. Same with your artist. Tattoo artists are typically a little rough around the edges, but if your artist doesnt look clean or smell clean, I wouldnt let them stick needles into you. Make sure the place is licensed by the state, and ask to see an artists portfolio. All new artists will lie about their experience to set you at ease. This is not necessarily a bad thing, everyone has to start somewhere, but no artist will ever tell you they have been tattooing less than 2 years, reguardless of actual experience. A portfolio will tell you a lot more about the artists abilities and experience. Look out for all fresh pics too. If there arent any pics of the work after its healled, thats not a good sign. Usually a trusted artist will be revisted by their clients to show off their work after healling. If they have no pics of that, then its possible the people went elsewhere when they had a problem.
Also make sure of their sterilization methods. Tubes, grips, needlebars, should all be opened from a sealed, and dated sterilization pouch. Dont trust the artist or shops word for it, ask to see the equiptment they are opening, and check the bags. Most sterilization bags have a water mark or the like that will change colors when heated to proper temp. And check the dates to make sure they have not been re-used, or just sealed in a new container and not properly sterilized. Contrary to popular belief, only the needles themselves do not get re-used. Tubes (that the needles travel through), grips (attached to the tubes), and needlebars (the bar that needles are soldered onto) are all re-used materials and should all be properly sterilized between uses. Most artists make their own needles. That is they buy new needles, and have a jig that sets the needles into proper configurations so they may be soldered to the needle bar. This is not a concern and is common practice.