Well, yes:

1. Create an Excel table with all the specs you want/need.
2. Go to the internet, search for some dealers
3. Configure several desktop computers according to your dreams.
4. Don't buy cheap or bargain computers, they're (mostly) cheap.

Hint, at first with an i7-2x00 (or i5-2x00) processor and the appropriate mainboard you don't need
a graphics card nor a sound card. That saves money in the first place. You still may add the components later. These processors (code name: Sandy Bridge) are already less expensive than their successor with the code name Ivy Bridge.

Working with photoshop requires lots of RAM. This should be a factor in selcting the mainboard. The ix-2500/2600 processors are sufficiently fast for your tasks (4x 3.3/3.4 GHz) even for a longer period of time.

As I wrote in another post: at least Win7 Professional, the limits of RAM are 192 GB. You probably won't get a mainboard capable of hosting that much RAM in your price range, but any other mainboard with a capacity of more than 16 GB should be a choice.

I have an i7-2600k processor (estimate $300) on an ASUS P8Z68-V PRO mainboard (estimate $220).

An last point: Select the right power supply unit. The extreme cheap ones usually may end as an incendiary composition.

Desktop; i7-2600k, 8 GB mem., Win 10 Pro, BIAB 2017; RB 2017 - latest build
Laptop: i5-2410M, 4 GB mem, Win 10 Pro, BIAB 2017; RB 2017 - latest build