Have you tried CMC's new Market Tracker platform ? It is web-based, you don't have to download and instal any software. I think the platform is still a work-in-progress, but it is functional; I would like to see a few more chart features added to it over time.
Go to their web site to have a read of the new trading features they have introduced, but available only in the new Market Tracker platform, not in the existing Market Marker platform.
I have a small account with Go Market which provides Meta Trader 4. Haven't really been using it as I much prefer CMC's platform.
