There's only an hour left on the sale, but JIC,
Steam has on sale:
*
Mass Effect 1 and
Mass Effect 2 for $4.99
* The ME2 Digital Deluxe for $7.49
* A combined
ME1/ME2 DD edition for $9.99
until 10am PST (1pm EST) today (Monday).
(ETA: Oops! Forgot that they do another 24 hours after the sale 'ends' in case you missed it, so you have until 10am PST / 1pm EST tomorrow (Tuesday) at these prices if you want to pick it up)