Make sure to choose a good competant machine shop. Be sure to have caps, studs, and side bolts to get a good align bore job. I like the pro-gram caps, especially if the block doesn't have the bosses cast into the block.
Another good less exspesive option is a main stud girdle. There are a few different ones out there for the fe but I like the one from 'Concept Design Engineering' the best because it incorporates all the oil pan bolts as well.