will this system work?

Hey. I am new at this so i dont really know what im doing, ive read a load on the internet but dont have any experience with what will sound good or not. Can someone tell me if this set up will work, i am not after the loudest system ever, and and not going to be entering competitions or anything, i just want something that will sound good playing loads of different types of music My car is a 1996 VW Golf (i think that is Mk3) The idea is that the head unit will power the 6.5" front speakers and the 6x9's in the back, the sub will run off the amp. I have already bought and mounted the 6x9 speakers on a shelf i have built from MDF, but i havent bought anything else yet I also have 2 stock speakers that are about 3" and are located in the dash. Will i be able to wire these up with this set up, and even if i can, would it be worth it?

Head unit: Inphase IPS-925MP     * 60W x 4 High Power Amplifier     * Security Features: Detachable Faceplate     * MP3 Playback     * MP3 Text Information Display (ID3 Tag)     * CD-R/RW Compatibility     * CD Text Display and Scroll     * 4V RCA     * Front and Rear Channel Preouts     * Subwoofer Preout     * Motorised slide down detachable panel     * Multi-colour Dot-matrix LCD display     * Aux-input for external audio source     * Telephone mute     * RDS tuner Front Speakers (6.5")

Pioneer TS-G1749 - 2 way 170 Watts     * 2 way speakers     * Frequency response : 35 - 25,000 Hz     * Sensitivity (1W/1m) : 90 dB     * Maximum power : 170 Watt     * Nominal input power : 35 Watt     * Woofer size (cm) : 17 cm     * Woofer material : IMPP cone

Rear speakers

Pioneer TSA-6901 (6x9)     * 2-way TS-A Series     * Frequency response 28 - 26.000 Hz     * Sensitivity (1W/1m) 92 dB     * Maximum Power 240 Watt     * Nominal input power 40 Watt     * Woofer size (cm) 23,7 x 16,3 cm     * Woofer material IMPP Cone Woofer with Butyl Rubber Edge     * Tweeter size (mm) 57,0 mm     * Voice Coil bobbin type Glass Imide Sony XS-L104P5B 1200W Subwoofer     * 10'' capless subwoofer     * 1200W max power output     * 330W rated power output     * Injected Polypropylene Diaphragm     * Magnet back cover     * Gold-plated Binding Posts     * 1-piece Capless cone design offers extreme stiffnes & rigidity     * Impedance (ohms): 4     * Sensitivity (dB/W/m) : 88     * Frequency Response (Hz) : 18 - 2,500 Sony XM-280GTX 400 Watts 2-Channel Amplifier     * 400W 2 channel amplifier     * Stereo or bridged mono output     * 4-ohm stable in bridged mode     * Tri-Way capable     * MOSFET power supply and output stages     * Gold-plated connectors     * Variable bass boost Total cost (excuding 6x9s) ~£200 Thanks a lot for any help :)

Thanks a lot for a reply, loads of useful information. I recieved the 6x9's as a christmas present so there wasnt much i could do about that, but i have not yet bought any other speakers and amps etc. A few more questions: I have been looking at component speakers, and they are a lot more expensive than coxials, being a student, about the best that i can afford are Alpine      SXS-1757 180 Watts 16.5cm component speakers     * 6-1/2"(16.5cm DIN) Component 2-Way Speaker     * Peak Power 180W     * RMS Power60W     * Sensitivity: 90.4dB/W/m     * 16.5cmWoofer + 20mm Neodymium Swivel Tweeter     * Strontium Magnet (Wf/Tw)     * Neodymium Magnetic Tweeter     * Glass Fibre Aluminium Coated Speaker Cone     * Butyl Rubber Edge     * PEI and Titanium Tweeter Diaphragm     * Aluminium Formed Voice Coil Where should i mount the 4-channel amp if it is to power the fronts and the sub? Also, where should i put the tweeters for the component speakers? I have read the FAQ so i hope i am not asking stupid questions, but if i am please forgive me. Thanks