You could start with a website posting your results and trading philosophie etc.
That's what I am working on. After that, perhaps Live Forex Journal. If you've got no web page experience, you could use a site like yola.com, where you can set a good looking website without any knowledge in html or anything... Skype chat also has a moderation function where others can only read your posts, cannot write.
Chatroll is pretty cool, they will take care of all your the people that want to pay to get on your chat, makes it pretty easy.
Of course with a good and growing reputation on forex forums and with live statements shared, you will probably have no problems filling up a good trading room. Of course you would need to offer good price for entry.
Also, I am looking at Tradency and zipsignal. Tradency is terrible for me, because you cannot change your SL or TP on a position once it is set, and all my strategies require constant modification in SL and TP... I found kind of strange they have this restriction, considering all the ea's you can find.. Their manual trading platform is terrible also.
Off to see how zipsignal will be like !