In reply to Rob:
Bohinjska Bela is nice but it's pretty small and there's not a huge variety of routes there. I was there a couple of months back and I certainly wouldn't recommend it as a travel destination just for sport climbing. That said Slovenia is a beautiful country and if your in the area you might want to take a look.
Not sure if it's your thing, but there's some great via ferrata mountain days to be had in Slovenia. Mangert being one of my favorites; its actually worth doing just for the drive (it's an old alpine pass built in the war), stunning views and endless switch backs! However you will need a hire car to access it.
If you prefer not to hire a car, there's good mountain days to be had from kranjska gora as you can get the bus up the vrsic pass. The bus stop at the top is at an elevation of over 5000ft so perfect for accessing the alpine routes there.