I am also looking for some upgrades without breaking the bank. I currently have th NW Isolation kit and a Johnson Pump. I am installing the H&R Sport cup suspension this weekend hopefully. I want some power adders.

What kind of power and times could I expect with adding:

EC SC pulley + DCAI + EC tune.

or

DCAI, oil catch can kit and asp178psk178

They don't sound like much, but they are a lot of money.

Other related questions:
1) What ECU tune is the best?
2) Why is the oil catch can needed as one of the first mods? I have not looked into it much yet (spending most of my little free time on the Ferrari). I assume this is done to keep from blowing the oil from the PCV system back into the engine, therefore possibly making a tad bit more power?
3) Is the DCAI worth it, or does the single make just as much power? If not going extreme now, is the DCAI worth it? Can you upgrade the single to the dual later?

Lots of questions I know, but it is hard for me to find time to read up on the forums.....