Hi, i have a wireless mouse and keyboard which is a belkin f8e815ukbndl, it is slowly breaking down and im in search for a new set. i was wondering whether an optical mouse is better than a laser one or is it vice versa. i would like a wireless keyboard and mouse that has a long life battery as my old mouse lasted for 2/3weeks before i had to charge the batterys. shud i be getting a bluetooth one or stick with a infrared one? links for keyboards and mouse would be grateful along wid any suggestions thanks.