What's the best way to transfer iphoto pictures to an external hard drive?

Question

Just bought a new LaCie 1.5 Terabyte external hard drive to back-up all my photos.  What's the easiest way to copy my iPhoto library?
Also is there a way to copy an entire "event" in iphoto and paste these events into subfolders on my external drive?
I am trying to create a system of subfolders on my hard drive that groups some events together instead of copying my entire library into one folder.
I tried the "drag and drop" way, but found that sometimes when I let go of the mouse button over the appropriate folder they would somehow miss the folder and end up pasted on-top of the folder instead of inside the folder.
Or, am I just wasting my time with the subfolder thing? Is it better to just transfer the entire library to one folder on the external drive? ... since it's only for back-up purposes anyway.
Thanks,

Answer 1

The best way, IMO, is to copy the iPhoto LIbrary package intact to the external HD.  That will backup all your photos, edits, books, slideshows, etc.
To keep the backup copy current use a backup application like Synk or Synk Pro which is capable of making incremental backups, i.e. backing up only those new or changed files.
OT