maybe you've been asked this a thousand times....but what would be the most powerful/usefull graphics card to get for my 12 inch g4 ibook...the ram is at 512, but i will upgrade it to 1.5, currently the graphics card is a ATI Mobility Radeon 9550 32MB.....would love to beef up this laptop, so I could use my imac to concentrate on the music
many thanks for all input!