ibook G4 16bit video card upgrade?

If anyone out there has ever seen "Tailspin" you know what i am talking about when i call my ibook, The Seaduck. it is already as souped up as I can afford to with 1.2gb of ram.

in my system requirements I see it says

Displays:Color LCDepth: 32-bit Color

Is this the same thing as a video card?

I am trying to run CS3, and some things are extreemely jumpy. i am wondering if this is because of resolution or if I need a video card(CS3 requires a 16 bit video card), or maybe hard drive? (i have 30gb-9gb free).

i know the Seaduck can take a bigger hard drive, but i am not sure about video card.

Also, i have the 12" model ibook, and htis makes me feel like I am trying to write my nome on a grain of rice when I work in flash so i am wondering if I can hook my computer up to a better monitor, if you have any recomendations, and what the implications of that would be.

Thanks

well, ok. it only jumps when I use the most complicated of graphics, like a vectorized bitmap for a cursor, so I am guess I'll just work around it until I can aford a better machine...

but what about connecting a monitor to my laptop to get a bigger workspace? is there any that will connect through the firewire or usb port or something? preferably one that I can use on another computer when I upgrade so i don't have to purchase twice?