Newegg offers the Samsung 120GB 840 EVO mSATA 6Gb/s Internal SSD, model no. MZ-MTE120BW, for $84.99 with free shipping. That's the lowest total price we could find by $14. It features read speeds of up to 540MB/s and write speeds of up to 410MB/s.

Note: If you haven't yet, use Newegg's iPhone app and pay using Google Wallet to cut it further to $69.99. (This discount can only be used once per account.)