Olive Tree is offering a three-day sale on 200+ items. Among them is a $4.99 New English Translation of the Septuagint (NETS). Lots of commentary series and sets are deeply discounted, some half off. The Archaeological Study Bible notes (with full color images) are $9.99.
You can find more details here.
If you’re curious about Olive Tree or have never used it, find my reviews here.