That's much too broad a queston, so let's try to narrow it down a little:
1) What, exactly, is it you're wanting to do? Is this mostly for seated, talking-head material? Is it dialog for narrative (short films)? Are you recording VO/narration? Different tools for different jobs, so these things matter.
2) What, exactly, is the budget you have at your disposal? "Best" and "affordable" don't usually go hand-in-hand, and entry-level can mean a lot of different things. Knowing what your end-goal is, along with how much you have to spend, will help immensely.
3) Which camera are you using? If you have a camera that has decent recording capabilities and reliable audio inputs, it may save you a little on the audio kit. So, make and model, please.
4) Are you running as a one-man-band, or do you have crew people to help you? How much experience with sound for video do you and/or your crew have?