Hi!
The only reason I don't currently use my 1200 as much as I used to is I still have to fix/replace the keyboard.
However, I used to do all the things you've been talking about regularly when I was on res. at Uni. a few years ago on pretty much the same setup (I have the SCSI option on the BlizIV).
MY HINTS
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CD Burning - set it at 1x speed and walk away. It will build an image and burn it in one process from either SCSI or IDE (only tried a SCSI burner, though) if you set it and walk away for 72 mins (the length of a CD). It may work at faster speeds but I've yet to make a single coaster.
Mp3 - I was playing these last night. Use DeliTracker and the Mp3 player genie. Go direct from drive, do not have a large buffer (1sec or less delay) and set as mono with 22050 frequency. Fiddle with the options a bit and you'll be able to use PPaint for general drawing at the same time with not-too-sluggish effect (for example).
Web - Turn the automatic loading of images OFF. You DON'T NEED THEM. I even turn them off in IE at work half the time, except useless PC browsers don't have a nice 'load all images' button, and make it a pain to right-click-'load image' like iBrowse, AWeb and Voyager! This is a pain for PCs, but use on Amiga makes browsing MUCH more efficient. ONLY VIEW THE IMAGES YOU WANT TO SEE. Uh-hmm, excuse my yelling. ;-)
Screenmodes - Max Overscan may give you a little extra space, but it causes the DMA to slow down noticably. Consider changing the screen size to be larger than the actual display in multiples of 16 (eg, 640x512, try 704x576). Then, put icons and calculators and DeliTracker on one of two edges which generally remain off-screen during use, and size your windows to fir the entire VISIBLE display: instant icon bars! :-D
There are so many other things you can do which make the Amiga a joy to use, even if you do need a crowbar to coerce it in the beginning. Once you figure it out, using a PC is an annoying, misguided process.
Be well!
benJamin
"I use a PC all day at work. Why the hell would I want one in my home?"