I found the phillips CFL bulbs 3 x 40w and 3 x 25w but in the shop they had cfl bulbs which were 75w for the same price and they had a much higher lumen count 1000+ per bulb..I know i dont know a lot about growing yet but im assuming the more lumens the better so would 4 of these be as good or better than 3 x 40w + 3 x 25w? (all the bulbs are softone couldnt find other ones is that important?)
you really need for veg growth 6500k or daylight bulbs try going to a megga mart in the usa it would be like walmart don't know the type of store in ireland would be

Instead of wiring the lights together because I dont know how and not willing to risk dodgy wiring in my apartment im just going to buy four small desk lamps which should do the same job shouldn't they? they only cost about â?¬5 each.
yes those will work i think

I found a sterilied garden soil that should be ok shouldnt it or should I be getting compost?
no garden soil is not good for indoor grow you need to buy potting mix or potting soil. and you need to buy pearlite and mix 40% perlite to 60% potting soil.

The one thing I couldnt find in all the places I went was the nutes 15-30-15?
you might have to go online and buy your ferts

They all had miracle grow all purpose plant food and stuff like that but nothing had 15-30-15 on it. They also had some kind of tomato food liquid but I didnt know which one would work?
if you don't want to go online go get shultz cactas ferts follow the directions for suculants life cycle it will just be faster then it says. DO NOT USE MIRICLE GROW

Im almost definitly going to go for some lowryder seeds as they are auto flower and will probably be good for my first grow.
good choice

Finally because it is in my closet there is no direct source of fresh air..only when I open my window and the closet door in my room the closet is large enough so if I add a small fan it should help with the circulation but I don't know if this is enough? and is c02 an issue for a small grow such as my own?
ya you should be ok with the air flow with a small fan. and as far as co2 do not worry about it you first grow you are learning. If you feel you need it then look into it but remember this is your learning grow.