Yeah, me too here.
I Had to force-quit Safari 4.0 for the first time also, with the spinning pizza ball.
It loaded at first and hic-upped a little first then I just got the spinner.
That page is dangerous, some bad coding there, for sure.
I have been to many other pages, with flash and many with animated gif's and have had no problems what so ever.
And, Otherwise, the new Safari and that Java Release 9 has been behaving fine for me.
Thank goodness someone else is having problems. I thought I was alone. I've been cursing my iMac for months every time I visit a forum that I post on frequently. I always hold out hope that people with annoying animated gif avatars don't post in the threads I want to read/reply to... haha.
This is a bit ridiculous though. The "fastest browser" hangs when it comes across 10 year old animation technology. Awesome.
I've been having this problem with various incarnations of Safari and OSX for as long as I can remember and it still hasn't been fixed. I wonder if SL will fix this at all? Personally, I'm not going to hold my breath.
Can't begin to describe how frustrating it is to be on a quad core machine with 4GB ram hooked up to a 24MB ADSL2 connection and feel like I'm browsing the web in 1999 because of a couple of simple animated gifs on a page :/
I just tried loading up the link in the OP on my CD 2.16ghz MBP running Snow Leopard, and happy to report no beachballs! It's a little jerky when scrolling, but certainly nothing that would ruin the experience. It looks like maybe something has been fixed in 10.6?
I encountered this same problem, I solved it by saving a different way in photoshop. Instead of using save as in the file menu, i "saved for web" that solved the problem for me. Hope this was helpful!