Beginning Setup., Newbie needs affirmation/correction. Options

[Loofah]

I am setting up a pretty rudimentary home recording setup, and wanted to make sure that I was moving in the right direction.

I just got a dual G5 2Ghz tower and was looking to start using Garageband and perhaps move into Logic. I will use it primarily for practice.

I mainly play guitar but was going to get a keyboard to play drums, other instruments, etc.

I am thinking about getting the following:

Evolution MK-449C keyboard

and

M-Audio Audiophile 192 PCI card.

Is this a pretty decent starter setup? Do I need to get something like a Sansamp/Pod or a mixer to record my guitar or can I plug directly in?

Do I need anything else?

Sorry for being such a 'tard. TIA.