Compenant/part selection help please! xD

hihi! ive been thinking of building for bout 12 months now and i finally intend on doing so.
i kept putting it off and off etc.

Im in Australia and if i do mention any prices they are in $AUD.

i have a very rough outline of what is my desired system - but as this is first build i would like any possible suggestions etc on compenants and compatibility issues that you may see.
current pc has served well since 2000. went real into gaming in 2002-2005 then since havent really played any pc game. with newer games it sucks. so i stopped. might possibly play a few random games every month or so. would rate game usage as very rare.
graphic programs often used. will be also using maya too when i get it for new pc.

NOTE - I have no intention to overclock this system. I would prefer to keep the cost down as much as possible. im sorry for not providiing prices.

my aims are-
minimum 3-4 years without any major upgrades
vista ultimate compatibility
when i use it, it will be for video editing, downloadin music etc, graphics programs etc and some random gaming

ok now onto the compenants/parts i would like.

Case- NZXT Apollo - Black
PSU- unsure guidance required
Motherboard- unsure on motherboards. i want as many USB ports as possible as the amount i use is sickening.
CPU- either Core 2 Duo x6700 or x6800 Extreme
RAM- however much the motherboard will hold really - super high speed isnt required.
HDD- i would say id require about 250GB.
Video Card- well it has to be extremely good as i dont want to replace it when the nxt playtoy is released by invidia or ati nxt summer. would a 79xx cut it for vista? ive looked at the 8800's and they look real good but im not sure if the leap between the GTS and GTX is worth the extra $AUD200.( also im unsure whether this gprahics card will fit in the case? will it? its quite a monster)
Optical Drive 1- dvd+/- reader/writer (must be black)
Optical Drive 2- cd+/- reader/writer (must be black)
Floppy Drive- (must be black)
Soundcard- creative audigy 4
TV Tuner Card- im not sure what it is tbh, is it what it says on the tin? basically lets u watch all tv channels etc on ur pc? This is not essential.
Monitor- 22" Proview
Keyboard- already got that np
Mouse- already got that np
OS- Vista Ultimate
Extras- im going to get an extra fan for the front of the case as ther isnt one provided.

ok. any help would be great really.
the case is quite important as the comp will be visible more often than not to visitors etc. i really like the look of alienware cases so i have chosen this one. if u hav a case recomendation i will have a look but i really want somthing similar to the one i have noted.
i had originally gone for this raidmax ninja but i read some reviews and it turned out to be a shocker., cant find any major flaws yet for this one. but if anyone knows of any can u post them?

wow quite a beastly first post which could be perceived as me being lazy for leaving many blanks to be filled. but really i could have listed motherboards all day from where i will get the parts from but i would rather have someone who knows motherboards. i think i get the drift for them but i really dont want to buy the wrong one that isnt compatibile, since this place would probably skin me alive if even thought of saying refund or exchange.

so i hope its not too long and u dont give up halfway after reading my initial 2 and last 2 paragraphs which is basically me covering all bases before i post.

thanks in advance. it is greatly apreciated.

sam.