Can anyone help me on what to decide for my new PC. My PC requires a 350W PSU but i dont know if i should go for a bigger PSU(550W). If so...Why?

I am having constant server lag (20 - 40ms). Is there any way to stop or reduce this.

Is there any way of obtaining a Purple crystal? If so plz explain in detail because I am new to SWTOR.

Ok thanks btw do you know which 1 gives away purple crystals (not magenta)

Even though can you help explain

Can somebody explain to me on how pvp gear works. I am most confused on higher gear like champion. Do you need to buy champion gear bags to get champion gear or can you just go straight to the vendor and buy the armour you want yourself?