I would suggest sideboarding the Elite Inquisitors. Consider subbing-in some:
Avacyn's Pilgrims to give you a little mana boost and more early creatures
Fiend Hunters to give you some control
Champion of the Parish as he's Boss and you're playing all human
I'd be dropping any of the Instants you have listed (except Midnight Haunting) for these.
Break of Day would be better bang for your buck than Rally the Peasants as it costs one less to cast and while you won't be hitting quite as hard, your humans will be much more likely to survive the attack.
Another thought - if you intend to be really aggressive with your attacking, consider some Village Bell-Ringers to flash into play and untap all the creatures you attacked with prev. turn - always a fun surprise!
I think you have a good start at an agressive humans deck.
Hopefully I've given you some ideas on how to make this more aggressive. Best thing to do is play it, play it, play it and see what works for you.
Thanks for the advice. The one thing I didn't say in the description is that the green I splashed is for preventing control. If someone slagstorm, shocks, or incinerates one of my 2/2 creatures, I can hit them with Mutagenic Growth. IF someone tries to land a kill card, doomblade and the like, reacting with Withstand Death will keep them alive. That's also why I'm running stuff like Loyal Cathar, and Doomed Traveler, burning a kill-card on them is not as useful. Avacyn's collar might be a good idea. The one reason I would question using it is because I already have trouble with my creature base not being big enough. I still have to test this deck to see how well it will run.
Ah, I see now what you're aiming for. In that case, if you still find you are wanting more creatures out, here's a couple more ideas for you:
Strangleroot Geist - isn't human but is cheap and durable, and durable seems to be an underlying flavour of your deck.
Also, consider trading out your two Skillful Lunges for two more Mutagenic Growths - SL costs 2 for +2/+0 First Strike but MG costs 1 (or 2 life) for +2/+2; the Phyrexian mana is very flexible and the +2 toughness will often be enough for a typical human to survive something it can call without needing the First Strike.