Starting off with a demo account? where at?

i've been reading everywhere and everyone seems to be giving the same opinion, trading off a demo account. i was just wondering where would i find such services? and how long do i have to stay profitable in a demo account before going in foreal?

Try the AlpariUK Demo:
http://www.alpari.co.uk/en/open_demo_MT4.html

Setup a 10K demo and practice until you can double it. After that create another 10K demo account and double that - Then go LIVE with a micro account of $300 to $500 and double that - THEN you're ready.