Thank you very much Rigwyn & Tuathanach!
I'm not good with the + exponentials (much more familiar irl with -3 exponentials!). The advertising giveaway USB stick in my handbag/ pocketbook would be just fine!
Better news though (for me) is that my irl better half has offered me 1 Gb of data to spend tomorrow that he doesn't need, so, I don't need to go down my initial question path!
Tuathanach, you're suggesting 396 to 864 kb per hour... that might mean I have to limit my in game time and ration it over a month. What I'll do is watch the modem and the data useage and try to post some numbers back to this thread to help anyone else that might be dealing with similar issues. (I don't think there's too many areas of our real world with potential players who don't have access to fixed ADSL/ cable broadband though.)
Thanks again gentlemen!
*shivers* I was last rescued violently from being stuck in a house wall in Ojeveda..... What will I find in a new version of the game tomorrow?!
(Edit was to correct Mb and Gb.... did I say I'm bad with +3 exponentials?)