Here is another batch of Optiplex 9020 USFF computers, which is $16 dollars cheaper than previous deal, but one size smaller.
Thanks to JSQUARED for Original Valentine's Day 20% off Select Stores at eBay Deal Post, and remember to use cashback.
Edit:
Thanks to Calmago for releasing another batch of Optiplex 9020, this time it is SFF which have 2 low profile PCIe slots.
S model is USFF and will not fit a low profile GPU.
That said, I've got one for work and they're bloody amazing little things.