The best way to get what you want is to research as much as possible - there are many opportunities to do that here on Tom's Hardware. The sticky at the top of this forum is one of the best places to start: FAQs: How to ask for build advice, Buyer's Guides and Troubleshooting
If you have trouble along the way, just come back here to ask. Good Luck.
Kind of an open question, what is your budget? What will you be using the PC for mainly, games, video editing etc? You need to be more specific and decide what you need or want in a PC.