Sex With A Stranger...?

[Sundae]

I discovered Craigslist thanks to the Cellar.
It's not used as much here as it is in the States, in fact many of the posters in the personals are Americans coming to Britain and looking to hook up.

It's put me in a bit of a quandry.
My libido is waking up.
I would quite like to have sex. Yes - rereading and reconsidering that sentence I realise I do want sex. And all the rest of the gubbins that goes with it.

Now I don't have to be in love to have sex. I really enjoy it as an activity in its own right. And I don't want to face rejection (not good for the ego in these first, fragile, early stages) so I would post my own ad, with description and pictures*, so men know what they're getting before even responding.

*ETA - thinking about it, I would NOT have my picture on the website. But I would offer to send it in return.

So that sounds like I've got it all worked out, right?
I'm going to post my details and have sex with a stranger.

But I find myself stuck on one really important point.
I can only have sex with someone I fancy.
I'm not sure if I can tell whether I fancy someone before meeting.
And even then, will the pressure of expectation kill any mood?
Also I am attracted to confident, outgoing, ambitious men.
Would they be the sort of men looking for sex on Craigslist?
Hmmmm, scrap that - I think they would, sex is sex after all!

Any thoughts on any of the above?