Here, I will maintain a list of three suggested PC configurations - budget, mid-range, and high performance.
Budget (Office/General use) (Total $564)
CPU: Pentium Dual Core G3240 - $79
Motherboard: MSI H97M-G43 - $109
RAM: Kingston 4GB DDR3 1600 - $49
HDD: Seagate ST500DM002 or WD Caviar Blue 500GB - $65
Optical Drive: Samsung SH-224DB - $19
Case: Fractal Design Core 1100- $59
PSU: Seasonic SSP-350GT - $59
OS: Windows 7 Home Premium or 8.1 64 bit - $125
Mid-Range (General use & light gaming) (Total $955)
CPU: Core i3 4160- $159
Motherboard: Gigabyte GA-H97M-D3H - $135
Graphics: MSI GT 740 2GB - $115
RAM: Kingston HyperX Blue 8GB - $99
HDD: WD Caviar Blue 1TB - $75
Optical Drive: Samsung SH-224DB - $19
PSU: Antec TruePower Classic 450W - $105
Case: Silverstone TJ08E - $109
OS: Windows 7 Home Premium or 8.1 64 bit - $139
Performance/Gaming (Total $1370)
CPU: Core i5 4690K- $309
Motherboard: MSI Z97 G45 Gaming 3 - $189
Graphics: Gigabyte Radeon R9 270X Overclocked - $245
RAM: Kingston HyperX Fury 1866MHz 8GB - $105
SSD: Intel 530 Series 120GB - $85
HDD: WD Caviar Blue 1TB - $69
Optical Drive: Samsung SH-224DB - $19
PSU: Silverstone Strider Gold 550W or Seasonic G Series 550W- $119
Case: Corsair Carbide 300R - $105
OS: Windows 7 Home Premium or 8.1 64 bit - $125
If you have any suggestions to make, feel free to post them, but do NOT use this thread to discuss your own custom PC build. Create a new thread for that.