Newegg offers the iStarUSA Serial ATA 6Gb/s Trayless Hot-Swap Cage in Red, model no. BPN-DE230SS-RED, for $72.99. Coupon code "EMCELGF56" cuts it to $32.99. With free shipping, that's the lowest total price we could find by $17. This hot-swap capable chassis enclosure fits two 5.25" drive bays and holds up to three 3.5" hard drives. Deal ends July 27.
Mwave offers the DynapowerUSA Netstor 3-Slot PCIe 2.0 Expansion Enclosure in White, model no. NA211A(DT), for $724 with free shipping. That's the lowest total price we could find by $65. It features a 250-watt power supply, support for up to three external PCIe cards, and one 80x80x25mm cooling fan.