Ok P have done that - again apologies - bad mistake.
Another site I go to a lot down under is myshopping.com.au - although it is not site specific it gives a terrific comparison guide ie. price on Intel i5 2500 CPU just bring up the site type what you want in the bar and up comes a list longer than your arm of stores that deal with whatever you want - as above, cameras, umbrellas etc etc ad infinitum.
There are also dedicated stores I look at too - Shopbot, and Shopping Square but in general myshopping is the go.
Hope I've been helpful this time?*sweats*