This build is not for gaming, but it will handle the 'light' use:
PCPartPicker part list / Price breakdown by merchant
| Type | Item | Price |
|---|---|---|
| CPU | Intel Core i3-4130 3.4GHz Dual-Core Processor | $109.75 @ OutletPC |
| Motherboard | ASRock H97M PRO4 Micro ATX LGA1150 Motherboard | $79.89 @ OutletPC |
| Memory | G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory | $59.99 @ Newegg |
| Storage | Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive | $47.89 @ OutletPC |
| Video Card | Sapphire Radeon R7 260X 2GB Video Card | $97.98 @ Newegg |
| Case | NZXT Source 210 (Black) ATX Mid Tower Case | $37.99 @ SuperBiiz |
| Power Supply | Corsair Builder 430W 80+ Bronze Certified ATX Power Supply | $19.99 @ Newegg |
| Prices include shipping, taxes, rebates, and discounts | ||
| Total (before mail-in rebates) | $518.48 | |
| Mail-in rebates | -$65.00 | |
| Total | $453.48 | |
| Generated by PCPartPicker 2015-03-06 11:59 EST-0500 |
1) i3 will hold up for the future
2) 8GB of RAM will be plenty, could even drop to 4GB if you want to save
3) Good reviewed motherboard, has plenty of features and future upgradability.
4) Popular case choice
5) Good PSU
6) Graphics card which will handle light gaming (Minecraft, etc.) and photoshop well (so it will run light programs easily)
7) The HDD. This may be the part which is iffy. 1TB is alot of space, so I recommend you fill up this then buy another if you need it. Why spend $300 on 6TB of storage to only use 500GB?
EDIT: Didn't see the OS and keyboard/mouse. This is as low of a build as I would go, so maybe go used?
EDIT 2:
PCPartPicker part list / Price breakdown by merchant
| Type | Item | Price |
|---|---|---|
| CPU | Intel Pentium G3258 3.2GHz Dual-Core Processor | $71.98 @ Newegg |
| Motherboard | MSI H81M-P33 Micro ATX LGA1150 Motherboard | $44.85 @ OutletPC |
| Memory | G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory | $59.99 @ Newegg |
| Storage | Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive | $47.89 @ OutletPC |
| Video Card | Sapphire Radeon R7 260X 2GB Video Card | $97.98 @ Newegg |
| Case | NZXT Source 210 (Black) ATX Mid Tower Case | $37.99 @ SuperBiiz |
| Power Supply | Corsair Builder 430W 80+ Bronze Certified ATX Power Supply | $19.99 @ Newegg |
| Operating System | Microsoft Windows 8.1 (OEM) (64-bit) | $87.75 @ OutletPC |
| Keyboard | Logitech K120 Wired Standard Keyboard | $7.99 @ NCIX US |
| Mouse | Cobra E-3lue Wired Optical Mouse | $10.87 @ Amazon |
| Prices include shipping, taxes, rebates, and discounts | ||
| Total (before mail-in rebates) | $535.28 | |
| Mail-in rebates | -$55.00 | |
| Total | $480.28 | |
| Generated by PCPartPicker 2015-03-06 12:04 EST-0500 |
This has a lower end CPU, a lower end mobo, but everything else is the same. Some cheap keyboard and mouse which should be just fine.