new pc

Acer T650
* Dual Core Pentium D 820 2.8GHz
* 1GB Memory
* 250GB Hard Drive SATA
* ATI X1300 HM 512MB Graphics
* DVD�RW (+R double layer)
* ATI Radeon X1300
* Sound card - 7.1 channel surround
* Keyboard,Mouse
* Microsoft Windows XP Media Center Edition
�399.96

Case Standard case supplied with black matching drives.
Processor AMD Athlon 64 DualCore X2 3800+ Processor (64 bit)
Memory 1GB DDR2 memory
Hard Drive 160GB SATA 7200rpm hard drive
Graphics GeForce 6100 (integrated)
Optical 1 DVDRW (Dual Layer)
Power Supply Standard PSU
Security CyberLink PowerDVD Standard v5 OEM
Case Midi Tower ATX
Chipset NVIDIA GeForce 6100 + 410MCP
Frontside Bus 800MHz
Memory 4 x 240-pin DDR2 maximum 8Gb
AGP PCI Express slot
PCI 2 x PCI
USB 4 x USB 2.0 ports
IDE 2 x ATA133, 2 x SATA with RAID
Audio 8 channel sound
Network 10/100M RJ45 Ethernet (broadband ready)
Accessories Driver CD included

357.55 inc VAT

for those prices are they worth it, and do you think these systems are good. if not what would you change about it?

Well, I would add some USB ports to the first one, and a keyboard, mouse and Windows to the second.

Seriously, are you asking which is better? It would probably help if you told us the manufacturer and model number of the second PC. And the suppliers of both.
Ian