I'm in NZ. I can say NZD$600 max, and you can convert that into USD$490 by the current market, but you still won't have any real indication of what we can spend, as prices are grossly inflated down here.
For example, I recently purchase a sound card for my PC. The cheapest I could get it here in NZ was NZD$360 that converts to USD$290 odd. But in America the same card can be had for USD$155 (NZD$190 converted).
Size can be fairly large, up to say, 500mm high, 300mm wide, 400mm deep.