Hi,
Your domains seem fine, As for value , well your auction on ebay should give you an idea for a couple of the I ones.
Only trouble at the moment as far as I am aware you cant transfer eu domains just yet, maybe in another couple of weeks, dont know will that pose any problem to your sale on ebay.
As far as the eu domain itself , there is more registered at the moment than .biz , so its climbing the ladder, but looking at sedo half of the ones registered are up there!
I would suggest you hold onto your domains as in 2 years there could be a diamond in there somewhere.
I have voipdirectory.eu , what do you think of it??
Regards
Tommy