Kyoto Antiques always has really nice items, I've had great luck with their Meisen peices...all have been gorgeous and excellent quality. They are also a nice vendor to deal with and don't seem to over charge for shipping.
One item they seem to always carry is their "Kimono Kits". If you are just starting out with yukata and kimono, or have been wearing yukata for a while and are ready to take the leap into kimono, this new kimono kitsuke set from Kyoto Antiques is a very good deal.
This set is nice since it includes a korin belt and the obi makura is the larger type. The obi ita is very lightly quilted and has clips, which are really nice since you can put it on before you add the obi. Sounds simple enough but it's very handy when you are fighting with 12 meters of heavy silk fukuro or maru obi! The other items include 3 koshihimo (pink ties) and 2 eri shin or collar stays. The items are of good quality!
You can also buy another set just like this but with an added kimono hanger. A bit more money ($44.99, free shipping) but if you need the hanger, probably worth it.