Try here Teena:
http://www.action-graphics.com.au/products/clothing/safety/k28v.html
It says they come in fluro pink too

This place recons they sell Pink vests and hats too (for the McGrath Foundation):
http://www.centralsafety.com.au/index.php
I couldn't find them though, might pay to e-mail them.

There is one on e-bay too:
http://cgi.ebay.com.au/FLUORESCENT-PINK-HI-VIS-VIZ-WAISTCOAT-VEST-JACKET-S-/110496978930
I just Googled Pink Hi Vis vest and it came up with these sites

But I better get back to work or I will get my butt kicked for being on the net