i agree, and ginger ... ... i said the same thing to you in the other thread. you have two 512 mb cards. i only carry 1gb - and i shoot exclusively in raw. ginger, you're obsessing over nothing - shoot a few nightshots in raw tonight - baby steps - and see how it goes :D it's really no big deal.
Ginger.. you really don't need a 1gb memory card.. I only use 512 mb and I shoot everything in raw. Shoot as you usually do and then just shoot your night time experiments with raw.. trust me, you don't need any more memory really. You'll just jam up your system with more and more stuff..:D