The cheapest and most reliable service i found selling Asian Xbox 360s locally are selling it for 15,500Php. It includes the following package:

Xbox 360 Console, 1pc Wireless Controller, 20gb Hard Drive, Headset, Ethernet Connectivity Cable, Component HD AV Cable
Free Xbox Live Silver Membership: Includes one month of Xbox Live Gold, 220v AC.

I think this is good deal as it also comes a 1 year warranty against the dreaded 3RL problem of select 360s. I remember buying my first 360 at 25k a year and a half ago. That was when local shop prices were as high as 40k. Sobrang sulit. The 360 has a lot of games and plays even better when you’re online. The only problem of owning one is you cant actually frag it out with n00bs in Xbox Live while grinding your way through World of Warcraft.. Sigh.

Just remember to pair it with an LCD or a TV that has support for 720p or even true HD. An AVR wouldn’t hurt, too.