I have never experienced any difference between a live account and a demo account. Im actually watching a demo and live account side by side right now and i cant see any difference
Sincerely
Martin. Fair Trading Technology.
Try out FTT ( Fair Trading Technology) They are working with Dukascopy, one of the biggest broker there is, and there you can use the Meta Trader 4 platform. I trade with these guys and i strongly recommend it :)
I have used Dukascopy for both live and demo trading. Though i have used them via another company to provide myself with an MT4 Platform. For what i can tell Dukascopy works fine. But im not a great fan of their platform. I prefer the MT4 instead.