What would you use to RPG online?

I have a couple of friends who live in interesting places far, far away from civilisation (i.e. London) and manage to get less gaming in then their taste would like.

I’ve been looking around for software to run an online game, mostly focusing on video conferencing software. My efforts haven’t been all that fruitful though, every time I find something that looks suitable, it turns out to need a monthly fee to unlock essential features (such as supporting more then three people in the call).

So, since I think a few people are actually reading this blog now (thanks to RPG Bloggers), I thought I’d ask the community.

I think voice support is essential, as is support for at least five people. Video would be nice. A whiteboard, file sharing and dice rolling would be bonuses. I’d like to avoid paying money, but would be less annoyed by a one-off fee then something recurring. That said, if something is good and has a monthly fee, don’t be afraid to mention it.

What can you recommend? (Comments below please!). Thanks!