Best Buy via eBay offers the SanDisk 240GB SSD Plus 2.5" Serial ATA 6Gb/s Internal SSD for $53.99 with free shipping. (B&H Photo Video and Amazon charge the same.) That's $1 under our March mention and only a buck over the best price we've seen. (It's a low now by $6.) It features read speeds up to 530MB/s and write speeds up to 440MB/s.

Update: It's now out of stock at Best Buy via eBay, and the price has increased at B&H Photo Video. Amazon still offers it for the same price.