I'm going to be the voice of gumption - but I went to my artist wanting a shoulder-piece and came away with a totally different full back that just grabbed me as soon as he suggested it (literally: after years of dithering, he looked at my source file and said, "that sucks: but this would rock" and I was blown away and got it immediately). And I just got a bit of physics on my leg. I've got a UV test dot too - but it scarred too visibly for what I intended, so I only have the test dot (ink from ebay, formula from wikipedia, I should be dead by now

).
If it's well done and not dumb, you'll get used to it. At worst, it'll remind you of when you were into all that silly steampunk stuff. Will steampunk ever be embarassing? You bet it will. Think back on those awesome Portal tattoos from last year.

At best, it'll just totally rock and you'll love it for life and the girls will swoon over it like extras from a Robert E Howard pulp novel cover. Or boys. Or tentacle-things - whatever floats your dirigible.
A good artist is important. Flick through their gallery of custom stuff (not flash: anyone can trace out flash) and see that they're good. Awards from tattoo conventions are a handy sign. Personal recommendations are better.