There are also a number of other ways to get your work in front of people. The work should be cohesive, and consistent. You should decide on the size of the prints, and whether you want to edition them or not ahead of time. Some people eition different sizes... I can't get my head around that, so I've offered mine only in an edition size of 10 for 20x24 inch prints, mounted and matted.
Bear in mind... I haven't sold any! So, take this advice for what it's worth!
You need to do your research and identify galleries that would be a good fit for you. You might think about attending portfolio reviews. This costs money, but so does flying all over Europe or the states or wherever to meet each gallery separately. Although, it's full now, PhotoLucida does reviews in Portland, OR every other year. It's coming up in April. Likewise, Fotofest in Houston has four days of reviews every other year. It will happen again in March 2010. Google it, and you can find information. PhotoLucida also does an online review process called Critical Mass each fall. If you get into the top 175, then your work will be seen by 200 reviewers... gallerists, curators, publishers.
It helps to get your work into juried shows as well. Pick juried competitions that have a juror who would respond favorably to your work, and if you can find local and regional shows, you'll save on shipping when you have to send a print for display. Google Mary Virginia Swanson, and follow her blog. She is a "marketing fine art photography" guru. You might also keep an eye of the Texas Photographic Website for opportunities.
I realize that most of the sources are U.S. centric, but some of them may have leads or links to European opportunities as well.
It's almost a full time job... getting the work out there. It takes time, patience, a lot of rejection, but if you are confident in the work, you will find with some persistence, that you will get it out there.
It all costs money, of course, and time, and it can be daunting, and the rejections can be disheartening, but I have found the process to be satisfying, and I have a show right now on view as a result of these types of efforts, and another for the summer with a commercial gallery. (Though they may be teetering on the brink... I'm going to remain cautiously optimistic through this, erm... small "bump" in the economy.)