Let me start with your 2nd question first (i.e., is it worth waiting until Fall?). Well, while the desktop Athlon 4's (with 'Photoshop friendly' SSE) are now scheduled for late September, you can actually buy one (under the Athlon 'MP' name) right now. Other than the Athlon 4's faster 1.5GHz clock compared to the MP's 1.2GHz clock, they have the very same core and features. The new Athlon mobos will be those based on the SIS 735 and nForce chipsets and are rumored to arrive in the Aug-Sept time-frame. While they have been hyped quite a bit, so was the KT266 boards, and now we see that they don't provide any better performance than the AMD 761s. As for Intel, Northwood (and its mobos) will be about the only thing really new, and that's not expected until Nov-Dec. So my (long-winded) answer to your first question is 'don't get caught up in the waiting game'.
Getting to your first question about platform selection, here is an observation and some suggestions. My wife has an AMD-based (1gig TBird) system and I have an Intel-based (1gig P3) system. Besides different mobos, the rest of the two systems are configured identically, including Win2K. We run Photoshop on each of these systems and I have to admit that my wife's T-bird performs most PS operations a little faster than my system (in spight of the expected SSE advantage of my P3)! So, I say get an Athlon-based system with an AMD 761 DDR board (they are very mature at this point) and PC2100 DIMMs.
As you know, PS loves memory and since I'm scanning 35mm at high res., and manipulating the images before printing out 8 x 10s, I find that 512MB works well (more would probably be better).
Get 2 fast IDE HD's (SCSI would be better, but I'm not so sure they are worth their additional cost). In either case get 2 drives as PS works faster when it's 'scratch disk' is on another spindle.
Finally, if this PC will not be used for 3D/games, I highly recommend the Matrox G450 graphics card (unbeatable for 2D) with a high quality monitor (at least 19"). A 2nd monitor would be nice and it could very well be the one you have now.
Of course, since PS is multi-threaded, a dual CPU (SMP) system would fly - but now you are getting into big $$$ :tongue: (I'm drooling)!
Hope you made it through all of this!
<b>Edit</b> I got so long-winded, bbaeyens slipped in ahead of me (and with similar ideas)! I don't know if RAID is worth it, but I otherwise agree completely.
<P ID="edit"><FONT SIZE=-1><EM>Edited by pvsurfer on 07/10/01 02:10 PM.</EM></FONT></P>