Yep
Start with:
1. what you ultimately want the computer to do ('all around' for me)
2. Computer components definitely follows the 'you-get-what-you-pay-for' motto.
2a. Set a budget
3. Choose your chip
3a. Choose your motherboard
3b. Choose your memory
4. Choose your video card
5. Choose your power supply
6. Choose your hard drive
7. Choose your case.
You'll soon find out these things are interrelated but following the steps above will get you from 40 choices for each and every component to 4-5 for each component.
The chip will determine the motherboard which will determine the amount of ram, etc.
The case will determine how many hard drives you can install which (unless you add an expansion card) relates to the motherboard you chose .........
That should give you a good start.