Need Help upgrading my Graphic Card.

Hello,
I want buy a new stronger graphic Card I was think of a GTX 550 TI. The PC I have just bought here the whole spec list below. The question having these spec will I able to make the upgrade. Base on my motherboard.

Compaq Presario CQ5802

Operating System
MS Windows 7 Home Premium 64-bit SP1
CPU
Intel Celeron E3400 @ 2.60GHz
Wolfdale 45nm Technology
RAM
3.00 GB Dual-Channel DDR3

Motherboard
FOXCONN 2A8C (CPU 1)

Graphics
VH203 (1600x900@60Hz)
1024MB GeForce GT 220

Bus Interface PCI Express x16

Hard Drives
488GB Western Digital WDC WD5000AAKS-60WWPA0 ATA Device (SATA)

Optical Drives
hp CDDVDW TS-H653T ATA Device

Audio
Realtek High Definition Audio
Motherboard
Manufacturer FOXCONN
Model 2A8C (CPU 1)
Chipset Vendor Intel
Chipset Model G41
Chipset Revision A3
Southbridge Vendor Intel
Southbridge Model 82801GB (ICH7/R)
Southbridge Revision A1
System Temperature 26 °C
BIOS
Brand American Megatrends Inc.
Version 6.07
Date 03/21/2011
Voltage
12V 9.235 V
5V 3.885 V
CPU CORE 2.220 V
VIN3 1.668 V
VIN4 2.220 V
3.3V 2.773 V
VIN6 2.220 V
VIN7 1.644 V
VIN8 1.608 V
PCI Data
Slot PCI
Slot Type PCI
Slot Usage Available
Bus Width 32 bit
Slot Designation PCI1
Slot Number 0
Slot PCI
Slot Type PCI
Slot Usage In Use
Bus Width Unknown
Slot Designation PCI2
Slot Number 1
Slot PCI
Slot Type PCI
Slot Usage Available
Bus Width Unknown
Slot Designation PCI3
Slot Number 2
Slot PCI
Slot Type PCI
Slot Usage In Use
Bus Width Unknown
Slot Designation PCI4
Slot Number 3
Slot PCI
Slot Type PCI
Slot Usage Available
Bus Width Unknown
Slot Designation PCI5
Slot Number 4