It's so fun.

I haven't played it in a while but for a while there I was playing it every night for hours with friends and random people that would come on (it supports like 6 players).

I might have to check that out.

Can you play with a USB controller?

I'm not sure.

Well, I guess playing with a keyboard is pretty easy though.

I mean, click, click, click....

yeah it's only for fake monopoly money, it's good still, but the games have no ending, people just buy back in with more fake money and carry on playing and new people always enter the tables.
I wouldn't worry about playing with money, you seem sensible, as long as you only go for low stakes and play it safe within your bank roll... it's all still a bit of fun