[Newbies] Walk directory of files?

What is the best way to walk a directory of files? It would be nice is I could just: Get next file? exitst? ifFalse then done match pattern? ifFalse, then go to first step return file

This requires that the method track where I am. I think I can figure out how to stuff them into a collection, and return the entire collection of matched files, and perhaps that's the right answer, but that's not the way I would do it in Python or Ruby, so perhaps it's also not the way to do it in Smalltalk.

Also, if it matters, the files will be utf-8 files, many of them with BOMs. (Well, not really BOMs, since it's utf8, but the utf8 header.) Does Squeak recognize BOM headers?