Dell Inspiron 1521 AMD, and Inspiron 6400 Intel Help Please

Well I have two laptops that I would like to install Leopard on (either one would be fine, I would prefferably want to use the 1521). I have tried Kalaway and iATKOS on both and have not yet achieved success...

the 1521's specs are as follows:

-AMD Turion 64 X2 Mobile Technology TL-60 (2.0GHz/1MB) 2GB Shared
-4gb Dual Channel DDR2 at 667MHz
-widescreen 15.4 inch display (1280x800)
-120GB SATA Hard Drive (5400RPM)
-CD writer / DVD player (Combo Drive)
-ATI RADEON Xpress1270 HyperMemory
-High Definition Audio 2.0
- Integrated 10/100 Network Card and Modem

the specs for the 6400 are as follows

System Manufacturer: Dell Inc.
System Model: MM061
BIOS: Phoenix ROM BIOS PLUS Version 1.10 A17
Processor: Genuine Intel(R) CPU T2300 @ 1.66GHz (2 CPUs), ~1.7GHz
Memory: 2038MB RAM
Page File: 974MB used, 3342MB available

DISPLAY:
Card name: Mobile Intel(R) 945GM Express Chipset Family
Manufacturer: Intel Corporation
Chip type: Intel(R) GMA 950
DAC type: Internal
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Sound Devices
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Description: Speakers (High Definition Audio Device)
Driver Name: HdAudio.sys
Driver Provider: Microsoft

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System Devices
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Intel(R) PRO/Wireless 3945ABG Network Connection
Intel(R) 82801G (ICH7 Family) SMBus Controller - 27DA

-Sorry if it is too much info or not enough…
Please help if you can at all or even try if you want I would still very much appreciate it…Maybe someone can at least point me in the right direction?...anything is appreciated
-I hope we can get one of these working fine (that would be nice! )

-erebusting