If that's the case, you'll be better off with a 6x series board such as a Z68. To make it easiest on yourself, look at Gigabyte for maximum compatibility. Now... Do you need an mATX or does your case have enoguh room for full ATX?
There's an available DSDT for it here on the site, and audio and LAN both look like they're good to go. Make sure your case can support full ATX, though. It's not quite in your price range, but it's close. If you were in the US, I could help you out more. I just don't know much about European retailers.
This board assumes you're using HDMI out, though. It doesn't have DVI. But if that's what you planned on doing anyway, then I can't find a reason in the world why this board wouldn't suit your needs for about the price you want to pay.