Nolz

Get an error log (Also downgrade to Java 6, 7 isn't supported by Mac)

Well that made less sense then your first post

Try using Google

Try lowering the amount of RAM Technic can use. You should be fine with just 2GB of it

I guess your Processor isn't exactly powerful. Maybe the launcher is trying to extract/move too much files for it to handle

Go make your own bug report

We can't help you without an error log

[sarcasm] With the amount of info given, I'm sure we'll be able to fix this in No-time! [/sarcasm] (AKA We can't do anything without an error log)

Maybe you should post a bug report

We can't really do anything without an error log

Maybe you should post a bug report in the right forum section

Now what is this "Techkit" you're talking about? We've only got the Technic Pack on here

Okay ...Now, what do you want us to do?

It looks like Not Enough Items is conflicting with some other mod

Destruction Catalyst, Nuff said