Finding PSU's in NZ

Most of the recommended psu's seem to be almost $300 here.

Some of the ones around $200 appear to be available but when ordered don't actually exist in the country. The Silverstone ST56ZF is an example of this.

So if this website is a good example of the range available in NZ, what is your pick for this system. ie, what is the best but cheapest with possible overclocking and upgrade to 8800 later on.

CPU E6300 2M (C2D)
VPU Asus 7900GS
Motherboard Asus P5B-E or P5B-Deluxe
HDD Seagate 7200.10 320GB 16MB
Memory G.Skill 2GB DDR2-800 F2-6400PHU2-2GBNR (5, 5, 5, 15)

I noticed (apart from the ST56ZF which probably isn't actually there) this Chenbro which seems to be a FSP600 with 36A 12V line.
http://c1com.co.nz/shop/step1.php?number=7284

The AcBel 550W, Thermaltake Toughpowers, and the Zippy GSM models will do very well if the Silverstone isn't there.

Sweet, thanks for that.
Even my local shop where I have a dealers account has them.
http://qmb.co.nz/p.aspx?103335