iTunes Store - Network Connection Reset

Greetings, I have now been unable to connect to the iTunes Store for the last couple of days now but have been able to previously download apps etc. Now I continuously get the error message:

"iTunes could not connect to the iTunes Store. The network Connection was reset. Make sure your network connection is active and try again."

This is completely frustrating me as wish to download the new App "Spore" but cant. Can access the internet fine as am writing this help request. Have also completely reinstalled over the top the latest iTunes, which I was already running the latest version, still didnt fix the issue. Also reset my Keychain to no avail. So decided to do a complete remove of iTunes and reinstall it, which did and still no change.

Have searched and searched for a solution but have yet to find anything that works.

Please Help

Thanks