proper msconfig/services settings

I have a dell desktop that i picked up from someone when they bought new. I am trying to reset the msconfig/services settings to provide the best performance. Is there a utility or list of what items should be enabled vs power robbing ones to help optimize it?

Thanks,

Warren

Here's what is in the system info:


OS Name Microsoft Windows XP Professional
Version 5.1.2600 Service Pack 3 Build 2600
OS Manufacturer Microsoft Corporation
System Name DESKSTOCK
System Manufacturer Dell Computer Corporation
System Model Dell DE051
System Type X86-based PC
Processor x86 Family 15 Model 4 Stepping 9 GenuineIntel ~2527 Mhz
BIOS Version/Date Dell Computer Corporation A01, 1/3/2006
SMBIOS Version 2.3
Windows Directory C:\WINDOWS
System Directory C:\WINDOWS\system32
Boot Device \Device\HarddiskVolume2
Locale United States
Hardware Abstraction Layer Version = "5.1.2600.5512 (xpsp.080413-2111)"
User Name DESKSTOCK\admin
Time Zone Central Standard Time
Total Physical Memory 1,024.00 MB
Available Physical Memory 446.96 MB
Total Virtual Memory 2.00 GB
Available Virtual Memory 1.96 GB
Page File Space 4.90 GB
Page File C:\pagefile.sys