Whoever aisha is, her tank is over stocked. and angelfish needs like 30 gallons each or more.
I would buy the tank , hood , etc, seperately, because those starter packs still charge you a little extra. I got mine at my "mom and pop" store nearby. It really just depends though.
As for how many fish to put in. DO NOT follow the 1 inch per gallon rule. WRONG! It is really out dated. It doesnt work. NO GOLDFISH! If you want, you could get like 2 or 3 guppies BUT you NEED a heater. (sorry i said filter before)
Sorry for the yelling
Bizz