Welcome to the best army out there. Makeda3 is still new to us and there is play testing abound. She is basically a super solo that can do heavy lifting herself. She really shines with her feat and it goes well with the "Holy Trinity" Bronze Back, Karn and Gladiator, with beat back, side stepping, and reach Karn is crazy on feat turn since every kill allows you to remove fury it is very possible to wipe out entire units with him. Personally I run those 3 with her, mandatory beast handlers and 2 units of bog trog ambusers with support. The threat of ambushing bog trogs force your enemy into the middle all bunched up which is exactly where you want them. I've also heard sunhammer works well with Farrow Slaughterhousers, gives the beasts and jacks D3 damage and once damaged they get an extra die of damage from finisher that's 4 dice on the charge with a taskmaster giving +2
STR so on average dice 27 damage.
There have been some recent experimenting with her with 3 brutes on the table. Brutes are an awesome beast, often overlooked they are great for holding zones, body guarding, make good transfer targets. Joe Marrion took this to WMWeekend 2013 (not sure how he did) and it also had been experimented by Staks and to see that thread check here:
http://privateerpressforums.com/showthread.php?192698-Staks-tournament-reports-with-Makeda-3
Play what you want, Makeda3 is the warlock I grab when I want to have a good time and she generally performs well. I like Mechromancers advice, though I do love Tiberion, he is better
IMO with her prime version due to her spells. Swordsmen are something I cannot get behind, only
eMakeda offers them benefits, for a jam unit Nihilators with tough and reach do a better job.
Cool thing about Makeda3 is she does almost nothing for her army so there really isn't any must haves.