Hi,
I'm going to attempt my first gaming build. I have dealt with computers for years but this is my first build from scratch:
Asus P8Z77-V LX
Intel Core i5-3570K 3.4GHz
MSI GTX 660 Twin Frozr III 2GB
Corsair Vengeance DDR3 8GB (2 x 4GB) Blue
Seagate Barracuda 2TB SATA 6GB/s 64MB 7200RPM
A couple of questions I need help with is:
1) What is the difference between a "P8Z77-V" and "P8Z77-V LX".
2) What is the difference between a processor that is OEM or RETAIL.
3) What size of PSU would I need and should go for modular or not.
4) What kind of CPU Cooler should I go for?
Thanks and please also give me advice whether I should buy a different part that may cost not a lot more but will be better for me.

I'm going to attempt my first gaming build. I have dealt with computers for years but this is my first build from scratch:
Asus P8Z77-V LX
Intel Core i5-3570K 3.4GHz
MSI GTX 660 Twin Frozr III 2GB
Corsair Vengeance DDR3 8GB (2 x 4GB) Blue
Seagate Barracuda 2TB SATA 6GB/s 64MB 7200RPM
A couple of questions I need help with is:
1) What is the difference between a "P8Z77-V" and "P8Z77-V LX".
2) What is the difference between a processor that is OEM or RETAIL.
3) What size of PSU would I need and should go for modular or not.
4) What kind of CPU Cooler should I go for?
Thanks and please also give me advice whether I should buy a different part that may cost not a lot more but will be better for me.
