Newegg offers the Crucial 480GB M500 SATA 6Gb/s Internal SSD, model no. CT480M500SSD1, for $189.99 with free shipping. That's $8 under our March mention and the lowest total price we've seen for this drive. (It's a current price low by $20.) It features read speeds of up to 500MB/s and write speeds of up to 400MB/s.
Note: If you haven't yet, use Newegg’s Android app and pay using Google Wallet to cut it further to $174.99. (This discount can only be used once per account.)