I'd say the DT Swiss GR 1600 wheelset is very hard to beat at that price. They are in stock at Lordgun right now for $450 shipped to US.
I was thinking about building myself a new budget wheelset with HED Belgium G hoops, Novatec hubs, and mid-level DT Swiss or Pillar spokes (around $500 total), but I might actually give that DT Swiss set a hard look now.
Wow THANK YOU! I was just looking at these! Will definitely order these now! Thanks again!