I use a newer laptop, and I am able to plug my ch stuff right in. You'll need three usb slots tho. Ch products don't daisy-chain like the saitek does. So, a hub would be ideal, but isn't strictly necessary.
All the CH stuff comes with the CD of the program, or it can be downloaded from the CH site. It isn't necessary to use it for AH, but it does help to have it installed for trouble-shooting purposes. I haven't had to use it yet, personally.
Oh, and about the CH stick... The actual stick is designed for very large hands! It was actually too big for me, and I couldn't comfortably use all the hats like I wanted to. So be sure you can return it, just in case. Throttle and pedals are wonderful though.