The Heui pump in the engine valley is most likely the culprit of your fuel leak. They're not too difficult to replace. Most shops will charge at least 4+ hours of labor for the job. The pumps aren't too expensive. (somewhere around $100). It comes up on Auto Zone, Napa, and Car Quest's websites, but they "couldn't get it", because I wasn't a "shop". I ended up buying mine wholesale from a performance shop. Mine was made by Delphi, not Carter, but I doubt it makes that big of a difference. (and as for a dealership etc., the pumps they get, are rebuilds, not new)
To do the job, the only "special" tool you'll need, is a 1 1/4" box end wrench. The rest of it is self explanitory.
If you need any help, feel free to ask or pm me. I just did this job about a month and a half ago.
mike