ZBrushCentral

Quick question about PC specs

Hi all, just wanted to ask a quick question about PC specs, I’d like to use my current PC which I mainly use for 2D Illustrator and Photoshop work to get started learning ZBrush. I realise its getting a bit long in the tooth specs wise and am interested to know if it would be considered up to the task. Specs below:

Operating System
MS Windows 7 64-bit SP1
CPU
Intel Core 2 Duo E6850 @ 3.00GHz
RAM
8.00 GB Dual-Channel DDR2 @ 400MHz
Motherboard
ASUSTeK Computer INC. P5K Premium (LGA775)
Graphics
LCD2690WUXi2 (1920x1200@59Hz)
896MB GeForce GTX 260 (CardExpert Technology)
Hard Drives
977GB SAMSUNG SAMSUNG HD103SJ ATA Device (SATA)
488GB SAMSUNG SAMSUNG HD501LJ ATA Device (SATA)
488GB SAMSUNG SAMSUNG HD501LJ ATA Device (SATA)

Any advice / opinions would be most welcome.