Leopard for my computer

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I have a self-built computer what is sort of edgy some time:

CPU: Intel Core2Duo E6420 (2.13ghz)

Mainboard: Gigabyte 965P-S3

RAM: 2×1GB

Graphics Card: ASUS GeForce 8800GTS PCI-E 320MB gDDR3, 320Bit, Core Clock 500MHZ, Memory Clock 1600MHz

HDD: Western Digital 320GB, 7200 RPM, SATA2

Ethernet Card: Marvell Yukon 88E8056 PCI-E Gigabit Ethernet

 

and the problem is actually the latest releases of Leopard. I know that the thing what worked for me the best was iAtkos 1.0 and 1.0r2, only flaws were the sleep function and lack of my ethernet card drivers (i used a supported realtek card instead) second what i tried was Kalyway 10.5.1 worked also fine exept system had a problematic lag after 3 seconds (it was feelable by mouse freeze after the every 3 seconds. Why? But kaly had already supported marvell drivers. And now i have tried leo4all v3 and probably kaly 10.5.2 but kaly lacked of PS/2 keyboard support and leo didn't even boot up correctly due nvidia drivers and also the PS/2 support.

 

I'd like to have a run on 10.5.2 but i don't have any idea which disc and actions should I produce.