I've got a sam 440ep 667mhz. It's a very good machine,no problems with it at all. The flex 733 should be a bit faster and with more gfx ram it would be very nice. Never tested the flex version. The only negative about the ep is only 64mb gfx ram.
If you want one now get the 733mhz flex, or wait for the 460 which will be out in septememer afaik. :-)
And os 4.1 works very good on this hw.
