Hello, im new to this hole growing thing, but have done some research. i wanna get a grow box with LED Bulbs (Mixed Color for All Grow Stages), ventalation system ect. dont really need hydroponic system. I can water my self

. but anyone know of where i can get a decent grow box for a good price, and that will give decent yield with 2-4 plants

.
Go to the U-Haul store and check out the wardrobe boxes. It comes with a metal crossbar at the top to hold hangared clothing. There are usually two heights. I bought the smaller one for $10-12. Line it with panda paper. Cut a small hole in the back to run a cord through, and fit a small 4" $10 desk fan (Walgreens). From Home Depot get 3 light fixtures ($7 each) with the 7" reflecter hood, and fit with a compact fluorexcent bulb. Home Depot sells the ones that have a 5000K blue light spectrum ($7-8 each). Dont forget a grounded power strip. Hang the lights from the metal crossbar and run the cords outside box top to powerstrip.
The wardrobe box comes with a flap that folds down from the top, its a bit awkward, but it can be modified. The top is completely open, but could be covered easily with a similar grade of cardboard. I also bought a couple small sheets of 1/2" compressed styrofoam (also from HD) to insulate the outside of the box from heat and cold. But be careful if you completely enclose it that the heat doesnt build up. You would need better ventilation.
The good thing about this set up is that clones LOVE it because it is a little on the warm and humid side. I set the fan on top of a small box and point it up at the lights to blow the heat out. I use this system as my primary veg room. It will fit 7-8 (1/2 gal) bags, and a dozen clones in 20 oz cups.
In the small wardrobe box, I allow plants up to about 18". The taller box should accomodate the taller plants. It doesnt sound like you will want really big plants anyhow. For flowering, of course, you would also need a timer, and a different light set (not too heavy), but it is completely do-able.