IMHO, with Star/Putra accessibility + monorail or even commuter trains, anywhere you open next to these stations are convenient to majority of KL PC enthusiasts population! Also convenient for your parts to be delivered inter-stores without getting out of station. ie get someone to collect at the gate. This way, your company also saves train fares while delivery is faster and convenient resulting in better customer service.

If space allows, have 1or2 customer's space (small table/chairs) for sales discussions. A complimentary drink for confirmed sales > RM100 would be nice. SA attitude towards prospective customers most important, Pricing is next followed by fast/quick 1on1 warranty-exchange claims as customers don't live nearby. Provide nice C-Zone's bag, not necessary expensive type. Take it as free advertising like Dell's paper-bag. Who knows, maybe soon, you can be as popular as Dell!

Way 2 Go... win-win ->both seller/buyer benefits:D