OK, I'm hooked.

I WANT Leopard on this machine...What do you recommend? I will download it, burn it and try it EXACTLY as you recommend.

According to Compaq I have:
Iris8-GL6 Bios simulator
Athlon X2 (B) 4450e 2.3 GHz (45W)
2000 MT/s (mega transfers/second)
Socket AM2
GeForce 6150SE nForce 430 chipset
3 GB installed memory
PC2-6400 MB/sec
240 pin, DDR2 SDRAM
Integrated 10/100 Base-T networking interface
USB 2.0

Link: http://h10025.www1.hp.com/ewfrf/wc/d...reg_R1002_USEN

I know this will be at my risk, NON-Mac HDs will be turned off during installation process to protect other data.

Please provide links to downloads so I can be sure I'm getting what your recommending. Off-site is acceptable if it makes you feel more comfortable.

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Tiger: G4 PowerPC Dual Core 400 Mhz w/640 MB RAM
20 Gig ATA HD all HFS+
Internal DVD
Access to Server
True Tiger

Leopard: Acer Intel Atom Dual [email protected] w/1 Gig Ram
160GB HD-133GB NTFS, 15.68GB HFS+
SD slot
No Net access
iDeneb 1.6 Lite

Compaq SR5710F [email protected] w/3 Gigs Ram
80 Gig ATA HD (NTFS - Vista)
200 Gig ATA HD (NTFS-Data)
Access to Server

Server: Compaq 1.8 Single Core Windows Server 2003 Enterprise Edition
~2 TB online....