If the keyboard is too big: Get a smaller one. I would highly recommend getting a TenKeyLess (TKL) keyboard. If you really need the numberpad, you can plug in another keyboard with one, or (better yet) get a separate tenkey. There are many that feature cherry MX keyswitches. When you're gaming or otherwise not using the tenkey, you can put it to the left, or hide it altogether.
The problem you see, is that since the keycap size and key spacing is all pretty standard, you can only save an inch or so on the Razer BW, be getting one with a frame that doesn't extend past or hang over as much as the Razer BW one does.
For a non-backlit keyboard, you might consider the CMstorm QuickFire Rapid. I believe you can get it in ISO.
If you want a smaller-sized keyboard with a tenkey, you can look at some space-saving layouts, like Cherry G80-1800. I have a full-size WASDkeyboard, and it's about the same size as the keys, so a little smaller than the Razer BW. They also come in ISO.
I don't know what you're looking for: a smaller keyboard with a numberpad.... You can't make it too much smaller and still fit all the keys on there.