'summernight' is a recycled mini-itx in a shuttle case. i believe it's a dual core 2.something GHz processor with about 2GB of RAM. This is the primary machine on the network. Most shell accounts are here. Web, XMPP, DNS, and git are here as well. it runs the latest Trisquel (7, I think?).
'aprilshowers' is a ThinkPenguin Nano GNU desktop that's partially upgraded. I don't recall the exact specs. Not the lowest they offer, not the highest. This machine belongs to one of the users on the network and hosts their website. I handle the rest of their services. It runs Debian Jessie.
'eremit' is a VPS that I rent from tranquillity.se (thanks, @mikael!). currently it's not in use but it'll likely host a pump.io or gnu social instance in the near future. It runs Debian Jessie.
the router in "the manor" (my office) is a Think Penguin (rebranded Rosewill) router running LibreCMC. The router in my home is a Linksys WRT-54RG running OpenWRT. Both operate as open access points under the openwireless.org example.
There are a couple of machines in my home that are passive parts of the network but that's about it.
I'm going to invest in a better routing and switching setup at some point, maybe add a piratebox since my office is in a high traffic location, and add smoe more services eventually. All things in time! First priority, though, is finding a new name for the network.