How we will obtain a Visa to visit China or Taiwan, How much it will cost & what's the requirement?

We are Filipino nationals and currently working based here in Doha, Qatar. My sister and I, are schedule for annual holidays on December 2011 in Philippines and we are planning to visit either China or Taiwan on this season. We wanted to apply the visa from here due that our vacation will be a short limited time (30 days) only and our flight will be book itself from our country (Phils-China, China-Phils). Please let us know what will be the procedure on this. Thanks!