Pretty sure there is a whole thread of basic mods to do. But as a reply to your questions;
- Turbo timer - Don't bother imo
- Boost controller - Greddy Profect B Spec II (I have one, it's awesome)
- Exhaust - depends what you're after... Cannon, twin tips, mufflers, decat or cat, etc etc... too many options
- Front sway bar - Whiteline, Pretty sure everyone recommends them for quality and how much of an upgrade they do
- Suspension - What suspension are you after? Springs? Coilovers? Adjustable arms? etc etc...
- I would also recommend an aftermarket in-tank fuel pump if you're going to up the boost, I've got a walbro 255 and it's good
- Also if you're going to up the boost, depending by how much, you'll need to get an aftermarket ECU. Haltech (expensive option), Apexi power FC (about a grand (I think)), NIStune (about $360 + you will need an R32 ECU (because R33 ones aren't tune-able))
Not sure about the other stuff though... I'm sure someone else can shed some light on it...