Tight budget for a new pointer device? VicTsing's 2.4 GHz wireless mouse might just be what you are looking for - the MM057 hardly consumes any power, is durable, comes with a good material mix, and has a long working distance. It uses a PixArt PAW3212 optical sensor with five pre-defined resolution steps and switches rated for five million clicks.
Slow computer got you down? Maybe a hardware upgrade should be in your cards, if so this guide to the Fundamentals of Upgrading a PC is an invaluable read. PCSTATS Tips