Here’s a 2000 peso bill I’ve acquired. The wikipedia article has all the info you need, including pictures – but I believe I currently have the better pictures/scans of it on the Internet.

Click on the items below for different views of the bill (or the image above for a larger version)

1. Size compared to a 500 peso bill.
2. Obverse (front) high resolution scan.
3. Reverse (back) high resolution scan.
4. Shot of the cylinder mould-made portrait watermark – which you can see when you put the bill against the light.
5. High resolution scan of the Certificate of Issuance