Your local bird fair, direct from the wholesaler. Unreal prices. Just disinfect everything before giving it to bird.
Otherwise, Petco actually interestingly enough has a well-priced cage right now. I was almost about to buy it myself for my Sun Conure. And if you wait for one of their 20% off sales (there is actually one going on right now at posting time), the price is even more amazing:
http://www.petco.com/product/114150/Pet ... -Cage.aspx$191.99 (+tax) and free shipping for:
1/2" Wire Spacing
Cage with stand: 38.25" L X 38.25" W X 65" H
Cage: 30" L X 30" W X 43" H
HUGE CAGE for the price.
The color seems nice, too. Very unique and unobtrusive. I've seen this cage in person. The craftsmanship is acceptable but not outstanding. What's stopping me from buying it though is that I personally do not like play top stands, as it makes it dark and also difficult to hang toys from the top. Also, if your bird likes to climb upside down, it makes that hard, too. Also 1/2", which is much too narrow to offer treats and head scratches through the bars. As I have a Sun Conure (and a large one at that), I can use up to 1 inch spacing so I am going to see what I can find elsewhere.
However, if you're not picky like me, BUY IT. I usually try not to shop at Petco, but it's the best deal out there right now without comparison.
Happy searching.