1. get a nice portable dvd carrying bag. i have a great one from init with a messenger strap that also hauls my psp and a portable drive for MAXIMUM NERDAGE TRANSPORT. don't call it a "murse".
2. kingston has one for $50. might be able to find taiwanese offbrands for cheaper.
3. if you wanna get the best, fork over the $60 for the logitech vx nano. alternatively, fork over $50 for the microsoft arc mouse. both have tiny nubs, and the arc is a full size mouse that collapses to half the size.