I built a new PC recently to replace my last one which was about six years old. I wanted one to last me for several years, and sought advice from a family member in the business. I ended up with:
Microsoft Windows 7 Ultimate 64 bit
Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz, 3801 Mhz, 6 Core(s), 12 Logical Processor(s)
Physical Memory 32.0 GB
The main hard disk is a 64GB solid state drive, with data and backups on several internal 2TB drives. (I also have external backups.) All in a big tower case with several fans and filters.
The experts can probably provide more meaningful comment and recommendations, but for me this system really flies with Photoshop and
Lightroom, and for all the other mundane tasks.