Hmm, here's a list of what I find interesting:

Nature One in Germany, in an old abandoned military camp, check www.nature-one.de
it's the thirth time I go there and the festival is amazing, both in environment, as the dj's/acts that will appear there as in price, only 52 euro for a two day festival with approx. 250 dj's!

Also in Germany, Sonnemondsterne and Liberty One. You can find iinfo on the nature one site.

Q-base, as mentioned indeed above is good also. it's the first time they organise it and they have a pretty good line up, in fact, more than one, coz they have different stages. On one of those stages, Mark EG will perform too. Site www.q-dance.nl

Dance Valley indeed is allways fine, but more expensive

Here in Belgium, on the 16th of july, ten days off will start, ten days of electronic music with names such as Richie Hawtin, Garnier, Atkins, Derrick May, Villalobos, lots of live acts, and so on and so on......a huge list, just check their site. Festival lastst till 26th of july and coz of their tenth birthday, it will be held in two locations at the same time.
www.10daysoff.be

Ten days are during "the Gentse feesten" a 10 days streetfestival in the city of Gent.....