Multimedia creation and manipulation (at the consumer level or the high-end professional level) has always been one of the Mac's strongest areas.
1. Finding picture/video editing programs which fulfill your needs will not be a problem, although I haven't worked with Macs very much in a couple of years, so I can't answer your specific question regarding iPhoto. If iPhoto doesn't do it for you, I'm sure there are other applications which will.
2. In terms of the DVD burner and sufficient memory/hard disk space, you just get as much RAM as you can afford, and do a realistic assessment of your disk-space requirements based on the length and quality and resolution of the video/picture files and formats that you use.
3. Browsing and email:
- Internet Explorer, Outlook, and Outlook Express, if those are the programs you are used to using in WIndowsLand, are all available for the Mac.
- The built-in Mac browser (Safari) works well with most sites, although the actual amount of cross-browser compatability of a given site is really in the hands of the person who designed the site. Other popular browsers such as Netscape, Mozilla/Firefox, and Opera all have Mac versions.
"May the Wombat of Happiness snuffle through your underbrush."
- Ancient Aborigine blessing
Please do not contact me by email or PM for help. We're all volunteers here, and only have so much free time to dedicate to our efforts.
However, if I've been working on a thread with you already, and seem to have "forgotten" your thread, please do send me a message. I try not to let things slip through the cracks, but it does happen sometimes.