If you're looking to stay mechanical, I would recommend checking out /r/mechanicalkeyboards for advice. Their wiki is fantastic, and it's a very active community.

I myself have a WASD 105 key (MX Blues, ISO layout) with thick PBT doubleshot Vortex caps for that delicious thunk. Excuse the potato photo, my card reader is bust so my proper camera is a icantbebothered no go right now.

WASD are a good bet for a decent board at a decent price, and you can go all custom with your keycaps (which I did originally, but replaced them with the Vortex caps, except for the UK ISO layout specific ones which you can probably spot, as they have black legends, not orange). They do boards in a whole variety of layouts too. The Poker is also a good bet (either the Poker 2 or the Pok3r), but only if you like compact keybaords (it's a 60%, meaning no numbad block or arrow keys block, all those extra keys are accessible through a second layer by holding down a modifier key).

I would avoid the majority of things that are marketed directly at gamers, like Razor products. They tend to be all flashy lights and no real substance and are cheaper, so have less quality control and are much more likely to fall apart quickly. They also don't use Cherry switches any more, which is a put off for some as you can't really beat the Germans at quality, and Cherry are the original of that switch design.

If you want to go really hardcore there is Realforce, which use Topre switches, which are a blend between a mechanical switch and a rubber dome. I think these are quite expensive, and an acquired taste. If it's the click clack you enjoy, probably not for you. Someone, I forget who, makes a Topre board where they've swapped the switch stems for MX cap compatible ones so you can use MX keycaps on a Topre board.

One other option is of course the remake of the classic IBM model M keyboard which can be bought from Unicomp here. These of course use buckling springs, so prepare your ears for an onslaught of thwack and PING. If you use VOIP of any kind, I would probably have another keyboard to hand though 😉

There are plenty of other MX boards out there from a variety of manufacturers too, so check out /r/mechanicalkeyboards for some expert advice. As for rubber domes, well, I couldn't honestly tell you, as I'm never going back to those. You can get some OK ones for around the £30 mark (so probably $30 then tbh) I think. I know I found a decent one for a friend when I built him a PC at about that price.

But then again, once you clack, you never go back.

Peace out friend, and good luck.