I'm looking to move to an iMac 20" from my current PC setup (see below for details). While I am a bit worried about the actual processing power (for video/photo editing) I'm much more worried about data storage. Currently I have twin Sata 300 GB drives and an external 250 GB drive. Both the internal drives are full and the external has about 30 GB of free space left. How do you data junkies/packrats solve your storage needs without detracting from the elegant simplicity that is the iMac? Thanks for any help
PC Setup
Intel P4 3.4GHZ
3 GB RAM
Dual Seagate SATA 300 GB
WD Firewire 250GB
NVIDIA GeForce 6600 GT
20" Radeon Pressview XL