Reliable Chinese wholesalers for tech stuff

Hi there

A friend of mine is in China at the moment (he is Chinese). Him and I would like to jointly import wholesale items. We're looking at MP4 players , USB flash disks and possibly video game consoles. I'd really appreciate it if someone with experience with dealing with wholesalers of these products in China could inform me of which are reliable, and low priced enough to ensure a decent profit. Electronic payment isn't going to be an issue as my friend will pay the supplier in China.

Thanks all