Go to Hong Kong.
A. The travel within Asia is cheap, and Hong Kong's a good place to visit anyway.
B. Apple prices in Hong Kong are fixed and reliable and the dealers have a good reputation.
Come here in the summer when it's hot and disgustingly humid and return with your nice MBP to a slightly cooler Taiwan.
UPDATE: Look for the local dealer (Design Group) in IFC Mall in Central (Next to Dymocks and over Hong Kong MTR Station), 298 Hennessy Road in Wan Chai (Wan Chai MTR station, follow the signs for Hennessy Road and walk East until you see number 298 -- it's a complete maze inside, but great for bargains), 10-12 Floor in Windsor House in Causeway Bay (Huge Mac Centre)(signposted from Causeway Bay MTR station), or Golden Computer Centre in Sham Shui Po (again, signposted from the MTR).
Note that buying additional RAM or Hard Disks will be very cheap here, so you can buy a stock MBP and upgrade it to 3 or 4GB much cheaper than from Apple. Most RAM places will let you test the RAM in your laptop when you buy it to make sure it works. Talk to the guys in the DG shop when you buy it -- they may know (or offer!) to upgrade the RAM cheaply.
Hong Kong places can sometimes have a reputation for ripping you off, but I've been here for ten years now, and I've found that the big computer malls are pretty trustworthy. Just know about what you're buying, how much you should be paying for it, and you'll be ok. Walk around the mall first comparing prices to get an idea of what's what for RAM/Disks. Also, learn your numbers in Mandarin (although Cantonese would be better) and speak a little Chinese at people when you're bargaining. (You won't be able to bargain much for components - the margins are tiny and the shops just plain can't afford to give too much away. Don't use a credit card - the shops get charged 2.5% for that, and they'll pass that on to you.)
Just don't buy any electronics in the tourist areas (Tsim Sha Tsui) and you'll be ok.