I've recently managed to successfully build my budget office/light gaming PC and it works quite well. In fact, I even tried out games like Race Driver Grid, Need For Speed Hot Pursuit, and so forth. All of them runs surprisingly well on medium-high video settings/low anti-aliasing at 1680x1050/60+ frames-per-second. Depending on the specs and/or games you plan on playing, do you think the Celeron G1840 is good enough for games that aren't very demanding or games that are very well optimized even on low-end systems?
PCPartPicker part list / Price breakdown by merchant
CPU: Intel Celeron G1840 2.8GHz Dual-Core Processor (Purchased For $0.00)
Motherboard: Asus H81M-A Micro ATX LGA1150 Motherboard (Purchased For $74.99)
Memory: Crucial 4GB (1 x 4GB) DDR3-1600 Memory (Purchased For $0.00)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (Purchased For $0.00)
Video Card: PowerColor Radeon HD 7770 GHz Edition 1GB Video Card (Purchased For $0.00)
Power Supply: Antec 450W ATX Power Supply (Purchased For $0.00)
Optical Drive: LG GH24NSC0 DVD/CD Writer (Purchased For $0.00)
Wireless Network Adapter: TP-Link TL-WN721N 802.11b/g/n USB 2.0 Wi-Fi Adapter (Purchased For $0.00)
Other: HP Pavillion Old MicroATX Case (Purchased)
Total: $74.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-06-07 08:27 EDT-0400
PCPartPicker part list / Price breakdown by merchant
CPU: Intel Celeron G1840 2.8GHz Dual-Core Processor (Purchased For $0.00)
Motherboard: Asus H81M-A Micro ATX LGA1150 Motherboard (Purchased For $74.99)
Memory: Crucial 4GB (1 x 4GB) DDR3-1600 Memory (Purchased For $0.00)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (Purchased For $0.00)
Video Card: PowerColor Radeon HD 7770 GHz Edition 1GB Video Card (Purchased For $0.00)
Power Supply: Antec 450W ATX Power Supply (Purchased For $0.00)
Optical Drive: LG GH24NSC0 DVD/CD Writer (Purchased For $0.00)
Wireless Network Adapter: TP-Link TL-WN721N 802.11b/g/n USB 2.0 Wi-Fi Adapter (Purchased For $0.00)
Other: HP Pavillion Old MicroATX Case (Purchased)
Total: $74.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-06-07 08:27 EDT-0400