I had been considering building a new computer. I recently bought two rather expensive books to inform and help me do this. I was in a book store again last week and saw a special issue magazine, "355 PC Answers" published by Maximum PC magazine. Here's an excerpt; some info that's making me put my plans on hold:
"Question: What features will the next generation of motherboads have?
Answer: A slew of important new technologies will appear on motherboards in 2004. In the first half of the year, PCI express will blow away the 133MB/sec transfer rates of the erstwhile PCI bus with a bandwidth cap of up to 4GB/sec in each direction. Also keep an eye out for PCI Express Graphics, a high-bandwidth variant of PCI Express destined to replace the AGP bus. Meanwhile, DDR2 memory should emerge around the same time as both of these new data buses. You'll find all three of these technologies in new Pentium 4 chipsets from Intel (Grantsdale) and VIA (PT890), and as-yet-unannouonced AMD64 chipsets from nVidia and VIA. Aside from that, look for next-generation motherboards to be offered in the new BTX formfactor, timed for release in mid-2004."
If you're a guy like me who buys a computer every few years, you might want to wait for all these new (and significant, I think) features. If you're always upgrading, then you might also want to wait, as prices of current components will go down in price.
Just thought I'd mention this. That magazine issue is pretty good; comes with a disk of utilities also. "Spring 2004" edition, US$9.99, CAN$12.99. As a novice, I found it very informative.
PS - The books will be obsolete the moment I decide to build with these forthcoming components....