hey guys,
I need some help with choosing certifications. I'm really confused as to what to do

. I currently work for IT support which revolves around windows. I can handle linux fairly well and really enjoy working with nix. I have 3 certifications in mind MCSE, CCNA, RHCE although i dont want to do everything at once .Can anyone tell me how do i go about choosing the right certs please. TIA
p.s : A friend of mine told me its hard to get a linux admin job , is this true guys !!!
Cheers,
Donovan