K400 or K400r or K400 Plus or K410?

[Fun Guy]

Confused as to which one to get... this will be my first HTPC...

 

[techne]

I own the K400 Plus and love it.

Avoid the K400 (too old, no zoom, no horizontal scroll):

http://support.logitech.com/en_us/article/39601?product=a0qi00000069v0EAAQ

 

[bigboxes]

I own the K400 Plus. I love it too. Just what I needed in an HTPC keyboard. I don't use the keyboard much and the battery is still going strong a year later. Solidly built.