The big problem with sowing seeds indoors is that the light comes from one side and your seedlings will get 'drawn' (stretching towards the light). You can help to get healthy, sturdy seedlings and increase your chances of success if you make a simple box to reflect the light back to your plants. Use this with a propagator or just stand plants in pots in the box. You'll be amazed at how effective it is and it costs virtually nothing. All you need is a cardboard box, which is cut away on one side, and some foil to line it. With the stes from this how to video you will be able to make a light box for your indoor seedlings.