Late last year I read Robert Massie's Dreadnought, and I'm currently about halfway through with his Castles of Steel, so of course I'm looking into some WWI (and maybe some pre-dreadnought) naval gaming. I ordered a copy of the "Dreadnought" rules by Ben King, and am grabbing two more rulesets in PDF (Grand Fleets and Naval Thunder) later this week. Once the rules get here I suppose I should start figuring out what scale to go with, although I'm looking at the lovely Navwar 1/3000th scale offerings.
All this has sort of revived my interest in several different naval (or faux-naval) wargame settings; when I ordered the "Dreadnought" rules I also gave in and grabbed a set of GW's Napoleonic-era naval wargame "Trafalgar," as well as digging out my old Battlefleet Gothic stuff and taking a serious look at it, and the BFG rules, for the first time in a long time. I'm also eagerly awaiting Catalyst games upcoming dieselpunk/WWI-ish game of giant flying ships, Leviathans. This style of gaming is something I've got no experience with at all, but it seems like an interesting area to explore.