I'd go with an A3K as I'm after one myself because I'm sick of using my A4K. The SIMM sockets are useless, so much so that I had to buy an accelerator just to add fast RAM. Even the Chip RAM socket is dodgy and I had to wedge some paper between the SIMM and my Picasso IV in order to stop my system from hanging. Not an ideal solution! As I have a graphics card and don't have a Toaster 4000 I never use AGA and to be quite honest would rather not have it as the ability to play old games such as Jimmy White's Snooker appeals to me more. Like others have mentioned before the on board IDE is like treacle so I'm much rather a nippy SCSI interface instead. I don't know as I've never owned an A3K whether or not it's plain sailing but I do know that my A4K can be a right pain in the arse sometimes.
