HomieGear via eBay offers the Reebok Men's ATV19 Sonic Rush Shoes in Black/Red/Green for $39.99 with free shipping. That's the lowest total price we could find in any color by $5, although we saw them for $10 less on Christmas Day. They're available in select sizes from 8 9.5 to 13.
Finish Line offers the Reebok Men's ZigKick Wild Running Shoes in Black/Red or Black for $27.99 plus $5.49 for shipping. That's the lowest total price we could find by $10. They're available in sizes 7.5 to 14, but not in all size/color combinations.