1. Speed Issues
These can be a bit of a problem to sort out. Did you migrate the Library from the old machine? DId you also migrate the app?
Some things to try:
Rebuild the Library: Back Up and try rebuild the library: hold down the command and option (or alt) keys while launching iPhoto. Use the resulting dialogue to rebuild.
Use an app like
[Onyx|http://www.macupdate.com/info.php/id/11582/onyx] to clear out the iPhoto caches. A corrupt cache can really slow things down. Next time you run iPhoto it will take longer to get going as it re-creates the cache but it may well see an improvement once it does.
More radical: Download
iPhoto Library Manager and use its rebuild function. This will create a new library based on data in the albumdata.xml file. Not everything will be brought over - no slideshows, books or calendars, for instance - but it should get all your albums and keywords back.
Because this process creates an entirely new library and leaves your old one untouched, it is non-destructive, and if you're not happy with the results you can simply return to your old one.
I really wouldn't go for number 3 until you've tried all the others.
2. Back Up
There are a lot of apps that will do incremental back ups of the Library. I use
DejaVu because it stores the Library in the Finder and makes testing the back up really easy. Others swear by apps like
Chronosync or the
[Sync|http://www.decimus.net/index.php] family, others prefer
[SuperDuper|http://www.shirt-pocket.com/SuperDuper/SuperDuperDescription.html]
However, I'm not sure that TM can't back up material on an external, but I would post on the TM forum for more on that.
3. Share =>Burn
I believe the trick is to select the Albums and go Share -> Burn. Then when you pop the disk into the Machine you click on the Disclosure Triangle next to the disk in the iPhoto Window and it will drop down and reveal the ALbums.
Regards
TD