Welcome to the forum. Make a post in the introduction section and.. well.. introduce yourself. This is probably as much as anyone is ever going to spoon feed you on this forum.
Best bang for your buck turbo system is probably going to be from BEGi if you want to go new. You can certainly piece together a system for less, but that requires a lot more knowledge. BellEngineering.net
. Plan to spend right around $3k to "do it once, do it right." The turbo etc. can be had for relatively cheap, but if you want to do it right you need quality gauges, a new clutch, standalone ECU, injectors, etc. and that stuff adds up. Also, keep in mind you'll be switching to premium gas and synthetic oil. You gotta pay to play. Don't like it? Stick to N/A.
Here are common acronyms and phrases: Terms people use when talking Turbos
Read this entire post: DIY FaQ - ALL your answers in one big post
Now go read it again.
When you think you're ready to turbo your car, go read it again.
People will say "omg search" but in all honesty, I think the built-in search function is bunk. Start by going to the top, mouse over "Forums", then mouse over "Beginner's Luck", then click "Useful Saved Posts." Some of it is dated, and lots of pictures and links are broken now adays, but there is still a TON of knowledge there.
If you can't find it there, use google for your answers (you can add "site:miataturbo.net" at the end to get results from this site, eg: "ebay manifold site:miataturbo.net" if you're curious how people here feel about ebay manifolds).
Do all of that before you ask any more questions if you want people here to not hate you.