Well, we've seen a few mentioned in this thread that seem to fall into this category. The cover story over the weekend even highlighted several options from Cisco. While it may be internal optimist speaking, I'm hopeful we'll see a few more suggestions in this thread too
I actually just decommissioned a X1052 that has served me well for several years. Nothing wrong with it other than it only had four SFP+ ports and that was too few to satisfy my 10Gb "itch". I plan on using it to test drive the Mikrotik S+RJ10 that should be arriving this week (assuming it works with the Dell), and perhaps using it as a backup/test switch in the future.
I did briefly try it out in my office, but even idling with no ports active it was too loud. I may experiment with a fan swap, but I would prefer to find a stock switch that is quiet by design if possible. Also, depending on how the S+RJ10 testing goes, I may need to find a switch that supports 10GBASE-T natively.