Best external keyboards?

Personally, I love the current Apple wired keyboard. I once made a list of the differences (pluses and minuses) between the Apple wired and wireless keyboards. Aha, I found it:

Wired Keyboard:
+ numeric keypad
+ no batteries to replace/recharge
+ has Page Up, Page Down, Home and End keys
+ larger Control, Option, Command, Space, and (especially) Arrow keys
+ has right-side Control key (my muscle-memory for Ctrl-C requires this!)
+ has seven more Function keys (F13-F19)
+ adds one USB port (uses one in back, but gives you two up front)
- wired
- it's wider

Wireless Keyboard:
+ wireless
+ it's narrower
= frees a USB port on the back of your iMac but gives you none up front
- no numeric keypad
- missing Page Up, Page Down keys, Home and End keys
- smaller arrow keys and left-hand Control key
- missing seven Function keys (F13-F19)
- missing right-hand Control key
- needs batteries every so often

Even though I love my current keyboard, I might be tempted by this if I had to buy a new keyboard: Logitech Wireless Solar Keyboard K750 for Mac - Silver at Amazon

I've never tried it but the comments make it sound pretty nice... has anyone else here tried it? (I would wish they hadn't put the Logitech logo smack in the middle like that, though.)

 

Apple wired keyboard has really great features.I am also using it.