I use a Storix 30 Gb external HDD for all my graphic work. Transfer rate is fine using USB 2.0, which also powers the thing, avoiding the need for external transformer, power wire, etc. It also has a firewire connector that I haven't used, and a power transformer if needed. It's about the size of a slim pocket book and has performed flawlessly for a year now. Both my work computer (W2K) and home (WXP) recognize it as just another HDD and assign it the next letter in sequence. (I also back it up to an internal HDD at home, just in case...)