Well this is coming from one new pi user to another:
I've had my RPi for about two months now:
All I needed was a simple 4-port usb hub (list of acceptable usb hubs found at:
http://elinux.org/RPi_VerifiedPeripherals)
Simple mouse (wireless)
and I use a wired keyboard.
To power the pi I have an android charger (5V at 1Amp) and an HDMI cable with an 8-gig SD card.
From the looks of it, you're pretty prepared, buddy!