Ah ok, I'm the opposite, I really do analyse fonts, I like the subtleties of different typography; absolutely loved studying Helvetica back in the day as a student.
'G' appears a few times in the sentence the pic is from in my OP and even to an untrained eye, an Arial 'G' is noticeably different to a Helvetica 'G', something my client will no doubt pick up on.
I guess I was just wondering whether anyone knew of a slightly rounded edged, Arial type font? But seeing as Arial is my best bet, I'll just round off the edges slightly myself.
Thanks for your help anyway.