Home Depot has the Bestier 44" Computer Desk w/ Reversible Shelf & LED Lights (Black Marble; USWM01-D471Z-BLKM) on sale for $59 - 15% off with coupon code BESTIERGAME in cart = $50 with free shipping. The Reversible Shelf can be installed on the left or right.

The underneath shelves can be adjusted to 3 different heights or removed entirely. Also includes LED lights with 7 color moods and 22 dynamic settings, a headphone hook, and cupholder.