Ok, so I finally succumbed to temptation and went and bought City of Heroes.
I then spent a frantic 2 days over the weekend realising that the same pitfalls that are inherant in any MMO is in CoH - that is, you need friends to play with to make it come alive.
In World of Warcraft, it was Horse (and to a lesser extent Scythe and Kitten) who was there to group with, and much later our guildmates of Swords of Justice.
But in CoH, there is no one about (well, so far at least. Hopefully, I'll be looking to join up with some Australian buddies).
So, if you're interested in giving it a go, don't be shy. Just send me an email and I'll drop you a trial cd-key and we can meet up on the Justice Server. Of course, you'll have to download the client.