Hi z1mmnd14

I had to do a similar thing recently, basically it involved doing a PPT presentation at a conference in York to show company members a rough idea of a new website for them. I live/work in London as a freelancer so it was quite a treck for a 15min presentation.

The difference between your situation and mine is that I'd been brought in to design their logo and website so it was worth keeping the PPT presentation charges lowish to keep them sweet.

I costed it outright at £200 but they paid for first class train tickets, overnight stay at a 4 star hotel with lunch and breakfast thrown in. You should consider an hourly rate to make it worth your while and let the client know what to expect to pay. This presentation took only a couple of hours to put together but I was charging for the design work seperately.

I charge different hourly rates for PPT, Photoshop, Quark and 3D work, if it's a big corporate company or advertising agency then coming in cheap as beans doesn't help you get the job.

Hope this helps.