New egg has a great search feature for things like this, better than amazon for drilling down (search for 10gbase-t and drill down).
I found the Netgear prosafe gs728tx, with 24 x 1gig, 2 sfp+, 2 10gbase-t, $550 at newegg. But it has a fan, probably uses lots of power. It's good but more than I...