Dell is the most competitive price wise.
On the whole prices of all brands are not bad when compared to prices in HK. I was told it's 'tax-free' here for compus.
Intel is right here on the island.
Printers, scanners are very reasonable. We bought a FujiXerox color laser printer on sale for Rm1,000 (reg price about Rm1,400), Forgot how much we paid for the sacnner as it was 2 yrs ago we got it in Penang....not expensive at all.
Quite a few places that sell computers eg Gurney Plaza and QueensBay Mall, both have a number of shops; One-Stop at Pulau Tikus has compu shops that assemble to your required specs.
Yesterday was the last day of the compu show over at PISA (Pg Intl Sports Arena). With Mega Sale and Visit M'sia there seems to be lots of promotions going on at the moment.
If you get electronics from SenQ (top floor of Gurney Plaza) and over at QueensBay Mall, you can purchase extended warranties, some times free with promotions.
Other brands beside Dell are Sony, NEC, Phillips, Toshiba,...etc... and Mac.