Newegg offers the PNY Optima 480GB 2.5" Serial ATA 6Gb/x Internal SSD, model no. SSD7SC480GOPT-RB, for $199.99. This $20 mail-in rebate cuts it to $179.99. With free shipping, that's the lowest total price we could find by $20. It features 4KB random read speeds of up to 60,000 IOPS and 4KB random write speeds of up to 43,000 IOPS. Rebate expires July 5.

Note: If you haven't yet, use Newegg's iPhone app and pay using Google Wallet to cut it further to $164.99. (This discount can only be used once per account.)