Is this a decent computer?

i am buying a new computer for myself and im not looking for a brand new compter just one so i can do what i want and play games. I found a refurbished one for $315. Im wondering if its a good one. The specs are:Features/Specifications:
Compaq Presario SR5510F Athlon 64 X2 5000 2.6 GHz Desktop PC


General Features:
Microsoft Windows Vista Home Premium pre-installed w/COA
AMD Athlon 64 X2 5000 2.6 GHz dual-core processor
nVIDIA nForce 430 Chipset
2 GB DDR2 SDRAM
500 GB SATA hard drive
DVD±RW drive with LightScribe Technology
No floppy drive
NVIDIA GeForce 6150 SE video
High Definition Audio, 6 speaker configurable
56K modem
Integrated 10/100BaseT network interface
Power Supply: 115 - 230V 50/60 Hz


Drive Bays:
Two (2) 5.25-inch external drive bays
Two (2) 3.5-inch internal drive bays
Two (2) 3.5-inch internal drive bays


Motherboard Expansion slots:
Two (2) PCI slots
One (1) PCI Express x1 slot
One (1) PCI Express x16 slot


Front I/O ports:
Two (2) USB 2.0 ports
Microphone in
Headphone in


Rear I/O ports:
Two (2) PS/2 ports
One (1) 15-pin VGA port
Four (4) USB ports
RJ-45 Ethernet port
Mic in
Line in
Line out


Dimensions:
14.75 x 6.5 x 16.25-inches (H x W x D, approximate)


Regulatory Approvals:
FCC
cULus

is it worth it