Minimum setting of programs for SL & OpenSim

I bought and set the economical personal-computer for SL and OpenSim only.

(Spec.)
CPU: Core 2 Duo E7500 2.93GHz/L2:3MB
RAM: DDR2-800 4GB
HDD: 500GB
Opt.Drive: DVD-RW
Graph.Card: GeForce GTS 250
OS: Windows7

And installed only 12 programs as below, so that this machine would work speedy.

1) Avast Antiwirus
2) Spybot-Search & Destroy
3) NVIDIA Display Control Panel
4) NVIDIA Drivers
5) Buffalo RAMDISK Util.
6) Micorsoft Visual C++2008
7) +Lhaca
8) Second Life Viewer
9) Hippo OpenSimViewer
10）Unzip
11) OpenSim
12) Core Temp 0.99.6

It's Very speedy and comfortable :)

(Additional 10/5/2010)
I have un-installed the Buffalo RAMDISK Util because monitor seems to have a little stop about 1 second-cycle :(