need some help..

okay. so i've been trying to find the perfect wireless mouse/presenter to use in my room this is the one i want:

it is an iogear phaser mouse. you hold it like a gun (there's a trigger on the underneath side that you can't see in this pic) and operate the track ball on the top with your thumb. you can click the trigger on the underneath side to select, just like a left mouse click. the buttons on the top work the same as any mouse: left click and right click. the button in the middle is a laser pointer. so it's really a mouse and a presenter all in one.

here's the problem. they don't make this mouse anymore, from what i can tell. it is not listed anywhere in their online catalog. i had one in my old room (different house) and loved it. but now i can't get one for this room. i'm looking for not just one of those power point presenters, but a mouse as well.

do you all know of a similar product? on that is a presenter AND a mouse that will control the entire computer.

i would really appreciate it! my mum finally gives me money to get what i need and i can't find the mouse i want. perfect!