Help on Buying a Keyboard.

I wasn't sure what section to post this in so I put it here.

I need help on choosing which keyboard to buy. I want something good but not too expensive.
I found this http://amzn.com/B001FSJC5A and gonna buy this with it too http://amzn.com/B003XTX09S. Do you think this keyboard is pretty good, or recommend me some other good keyboards.

Thanks

To actually play piano and hook up to my computer to use for Synths and stuff.

then why u dont buy a M-Audio or Alexis
they r damn gd for music production. i just got one Alexis Q25 and i get even ableton live8 (what i hate more than ever)
this is the midi controller/keyboard: http://www.alesis.com/q25 i pay it 69€
is cool i try it in Fl Studio and damn works really great

One Octave would be a big problem

Alesis Q25, is a good starter.

M-audio Axiom series is very decent as well.

Motif Es6