Metalchic

i have a couple of computers i wanted to try OS X on one of them. research has thrown out 10.7 already. So! my question would be weather i should even give it a try and where i should start or if i should even try. so heres what i've got.

Lenovo 3000 n100 (laptop)
Pentium T2060 1.6GHz dual core cpu (interesting subject, its basicly a Core Duo with 1mb of cache removed)

2GB DDR2 533 ram (actualy this ram is DDR2 800 and the CPU is a FSB1066 cpu and the chipset supports DDR2 667 but i would expect a FSB1066 motherboard to support DDR2 800 but whatever, its not in dual channel mode becasue i dont have another 2gb card to put in it the only dual channel set i have in SO-DIMM would only give me 1GB of ram)

and of course the chipset/graphics would be
Intel i945GM chipset (GMA950)

this computer also has a 160GB SATA hard drive. i'm not sure what the connection is for the CD but i suspect that its IDE (i can go find out if it would make a big difference)

the second computer i'm trying to make this work with is simmilar but not quite, its a Lenovo Thinkcenter 3000 J110.
Pentium D 820 2.8GHz Dual core CPU (unlike the T2060 wich is newer this cpu is 64bit)

512MB DDR2 667 ram (this is configured with 2x 256MB cards to work the Dual Channel but i can go up to 3GB DDR2 800 ram on this but the cards would be mismatched, only 2 card slots)

on this one its simmilar but not quite
Intel i956gz (GMA3000)

the computer is still using the IDE hard drive from my linux/windows experements and the IDE DVD drive but i can probably use SATA drives (mabye borrowing the SATA DVD drive from my main computer and using a SATA hard drive)

so i have also an unknown Dell board i've had working before with the Pentium D and has 4 ram slots that i could mix n match the ram better but i dont know what chipset it has. i kinda wanna get the laptop running so i can see if i can get better OpenGL preformance becasue the GMA950 doesnt have proper DirectX 9 support but does work with OpenGL 2. Windows doesnt handle OpenGL well and the linux drivers for the 915 derivitaves dont support any 3D at all so yeah, then theres the final thing that will probably be go or nogo and thats the software i have. picked from the envolope of on the side of a busted case is a mostly mint condition 10.5 install disk. but i dont know how the lisenceing works weather or not getting this from this computer would legaly let me install it on another computer (its not like windows where i could salvage the Key off a dell and install it on a dell or that i could get an OEM windows to reinstall the windows for that computer using the liscense, but also that retail lisences are transferable but Mac OS lisences are really confusing) so for me it comes down to weather or not i can reuse this disk or if i cant, if i cant then well trying to squeeze more life out ofm y almost 6 year old laptop well i guess not.

(i'm sorry for the poor thought organization and spelling problems in my post)

edit: i also realize that i should point out that i cant find any information about 915 derivitave chipsets and Core Duo (Pentium T2060) and Pentium 4 (Pentium D 820) derivatives for example my main computer is an E7500 Core2 Duo and an intel P43 Express chipset and i can find plenty of info about it.