From: https://www.thinkmate.com/

For over 25 years, Thinkmate has been a leader in building the highest quality computer systems 
for Business, Research and more. Learn more.

From: https://pcpartpicker.com/list/

Building your own PC and need ideas on where to get started? Explore our build guides, 
which cover systems for all use-cases and budgets, or create your own and share it with our community.

From: http://www.pcper.com/hwlb

Low ... Mid ... High and Dream machine builds

From: http://www.velocitymicro.com/wizard.php?iid=75

From: http://www.logicalincrements.com/#

  This guide helps you pick a computer for a specific budget. If your budget is as high as $5000, or as low 
  as $250, we can suggest PC components for you that will give you good quality for the price, and good 
  performance for the price. The guide also has a short description of what PC components are, what extras you 
  need for a complete PC (DVD-writer, operating system, screen, mouse, etc), as well as places to buy and 
  places to get more in-depth info. - See more at: 
  http://www.logicalincrements.com/newuserguide/#sthash.xcQgiU29.dpuf

From: http://www.maximumpc.com/build_pc_recommended_builds_february_2014

  Budget is an entry-level rig with pep, Baseline gets you a powerful system for gaming and content creation at 1080p, 
  and Performance beefs everything up across the board. These rigs are lab-tested and editor-approved. As an added 
  bonus, we've also collected several of our Upgrades of the Month from past issues, for your shopping perusal.
  
  

  System Specs:
  Intel i5 4590 with stock cooler
  MSI|Z87-G41 Motherboard
  16 Gigs Kingston Hyper X Fury DDR3 1600
  Western Digital 1TB Hard Drive
  Samsung 840 Pro SSD 128 Gig
  Generic mid tower case with 3 120mm fans
  

From: https://www.gamepc.com/shop/custom?rig=custom-100

build your own