Right Distro for Me

What distro should i go with i have the OSX86 Beta and LawlessPPC AMD&Phenom 10.5.6 releases but they dont work for me
Heres my Specs for the two computers.

Laptop
HP Pavilion dv2845 se
Wistron MoBo
AMD Turion x2 2.1GHz SSE,SSE2,SSE3Heres my Specs for the two computers.

Laptop
HP Pavilion dv2845 se
Wistron MoBo
AMD Turion x2 2.1GHz SSE,SSE2,SSE3
4GB RAM
nForce Chipset
nVidia GeForce 7150M / nForce 630M (Windows says 128mb, Ubuntu says 512mb?)
SATA Western Digital HDD 250GB - 1 Partition
Current OS - Unbuntu 8.10

Desktop
ASUS m2n-SLI
nForce Chipset
AMD X64 Athlon X2 4400+ 2.3GHz SSE,SSE2, SSE3
2GB RAM
ATI Redeon HD 2600 Pro 512mb
Western Digital HDD 500Gb - 3 partitions, 1 - 127GB - Main, 2 - 287GB - Storage/Games, 3 - 50GB - OSX Drive (0xAF)
Current OS - Vista Ultimate 32bit

Portable HDD
Seagate FreeAgent Go 120GB
2 Partitions - 1 Storage, 2 - OS X (0xAF)
4GB RAM
nForce Chipset
nVidia GeForce 7150M / nForce 630M (Windows says 128mb, Ubuntu says 512mb?)
SATA Western Digital HDD 250GB - 1 Partition
Current OS - Unbuntu 8.10

Desktop
ASUS m2n-SLI
nForce Chipset
AMD X64 Athlon X2 4400+ 2.3GHz SSE,SSE2, SSE3
2GB RAM
ATI Redeon HD 2600 Pro 512mb
SATA Western Digital HDD 500Gb - 3 partitions, 1 - 127GB - Main, 2 - 287GB - Storage/Games, 3 - 50GB - OSX Drive (0xAF)
Current OS - Vista Ultimate 32bit

Portable HDD
Seagate FreeAgent Go 120GB
2 Partitions - 1 Storage, 2 - OS X (0xAF)