Is it worth installing a Solid State Drive (SSD) into my old PC?

Hi

A friend said I should buy an internal SSD (Solid State Drive) and put
all my data onto that...
- How much faster is a SSD drive in practice than a conventional hard
disk?
- And would it be technically possible for me to add a SSD to what I
have (listed below) which is now about 3 years old...

Cheers


Ship
Shiperton Henethe

PROCESSOR: Intel Pentium 4 based system £555.04
MOTHERBOARD: Intel Pentium 4 D945GNTLR system board
Integrated Intel GMA950 graphics
*Intel High definition audio
*Intel 10/100 LAN*8USB 2.0
*4 conventional PCI *2 PCI Express x1 *1 PCI
Express x16 *1 Serial*1 Parallel
*4 Serial ATA interfaces
*1 Parallel ATA IDE interface with UDMA33,
ATA-66/100
*PS/2 Keyboard port *Mouse port
*Intel Pentium 4 3.2Ghz Processor 775 chipset
800FSB 2Mb cache
RAM: 1Gb (2x 512Mb) 533 DDR2 memory
GRAPHICS CARD: Matrox Millenium P650 PCle 128 - 128Mb Dual DVI/VGA PCI
Express X16 - s/n: KEW37452
CASE: ATX Midi tower with 300W 12V PSU
DISK: Seagate 120Gb 7200rpm SATA hard drive
OPTICAL: DVD RW dual layer +&- drive
O/S: Microsoft Windows XP Pro Oem