Thanks for advice you guys - only q I have about cordless/infrared is that how does such a keyboard/mouse recognise the puter if the puter itself has no matching infrared port? Prolly dumb but I am basing my ignorance on how a cellphone communicates with a laptop!!!
Presumably if I go for a cordy one again the choice of connector is self-evident? My keyboard has a single-prong plug (bit like a headset plug?)..what connector type would that be?