I like GHQ's detail and use their stuff for my main combatants when possible, but there are several others. Alnavco actually sells GHQ stuff a bit cheaper than going direct, and they also sell Superior stuff. Not as detailed, but much cheaper, and they have hulls GHQ doesn't. Same with Viking Forge (they did my Kuznetsov), they've got stuff that NOBODY else has, especially if you want to do a Chinese or Japanese fleet. I plan to use Superior and Viking Forge for subs, since those don't have as much detail to worry about as surface stuff. Quick Reaction Force does a lot of stuff focused on the Falklands, and also has several merchies. Finally, there's a guy on Shapeways that does a LOT of stuff nobody else does like extremely new ships like the Hyuga, and less well-known fleets, such as France, Korea, or India. Not much surface detail at all, but certainly recognizable, and I think adding some detail myself is very possible. Pretty cheap(especially if you sacrifice detail a bit more by going for White Strong Flexible material instead of Frosted Ultra Detail), and while I forget his name, his stuff can be found easily by going to Shapeways and searching for 1/2400 naval minis. I'm happy because he also has 1/700 aircraft that I cannot find anywhere else. You'd think it'd be easier to find something as iconic as a TU-95, but they're almost impossible to track down.