Firstly iPhoto – don’t use it except for de-duping the photos. I had 19k of photos of which only 4k were unique – the others werre spread across various files on my PC and were copies. I used Duplicate Annihilitor, an iPhoto plugin to do the job. Watch out though – when you move your photos from your PC to your Mac (assuming your computers are on a network this is drag and drop – I use my wi-fi network – plugin and play easy) make sure that, before you show import into iPhoto that you have gone into Advanced Options under iPhoto preferences and unticked the box that asks whether you want iPhoto to import into its file system – say no. Then anihilate away. Why shouldn’t you use iPhoto for the long-term? To print photos you need to use exclusively Apples photo print service. I use Photobox and don’t want to be locked in to Apple’s service. The only feature that I will miss is the face recognition in iphoto that is really good indeed. You can search by person without filing the photos. Picassa is brining out this feature shortly (I hope).
Safari is rubbish – limited cool plugins, lots of sites that aren’t configured for Safari and don’t work well and limited in functionality compaed to IE and Firefox. I use Firefox because it does have a huge collection of 3rd party plugins (my favourite is StumbleUpon – browse the web serendipitously according to your preferences!).