Yeah, I have had a lot of dealing with Rudi. I have purchased two belts off of him, a journal for my wife, and one as a gift for someone else. I also have a clan crest sporran (http://bearkilts.com/clancrests/clansporransm.jpg yep, that's mine) from Bear (made by Rudi). Celtic Empire makes quality stuff. While I don't have a knotwork sporran (mine is similar) and I have seen them often. The thing with these sporrans, is that they are quite roomy (cell, wallet, keys, matches), and they don't have a close on them, meaning that they just fold down.

In terms of the Belts, these are great for casual wear. I own a black in the St.Gall design, and a brown in the Lichfield design (I like this one better). They are thinner than a "kilt belt" but work great. Remember to get them a bit bigger if your kilt has straps and buckles.

I highly recommend Celtic Empire. http://www.celticempire.com/