clutch master, slave cylinders and ignition key lock cylinder

[95se]

I need to get new ones. I have looked at the online wholesale parts stores and was wondering if it mattered which ones I got or all the oe or oem the ones about the same in quality. For the clutch master cylinder I have found these brand names:

Nissan Parts Wholesale Nissan Body Parts Discount OEM Replacement Auto Parts
Beck Arnley direct-fit oem replacement (free ship) $65.
Sachs oe replacement 32
Raybestos stock replacement 32
Nabtesco (free ship) 75

on 1stnissanparts.com they don't have a brand name. They are just listed: master cyl for 87 and slave cyl for 37.

Also was told I need an ignition key lock cylinder which is causing my car to be a little slow in starting. Trademotion.com lists it under that for manual transmission for 128 and nissanpartspro.com lists it under only for auto transmission. But then they have a beck-arnley key, lock and ignition switch assembly (dir fit oem replacement) for manual tranmission for 161. Don't know if thats the same thing or not.

thanks