Beginner recommended tools

I have started doing IM a couple of months ago. So far I have set up 6 niche sites which make me about 2-3$ a day through AdSense.

As far as tools go I have tried EVO 2 (satisfied mostly with Linking Loophole plugin), standalone Linking Loophole trial (hate the manual email confirmation) and SEnuke (unfortunately I didn't have time to run it more than twice during test period).

What tools would you recommend? - keep in mind I'm on low budget so all free/trial/cracked/cheap tools are OK as long as they work.

Market Samurai - for keyword research
SEnuke - for profile links, article spinning/submission, and social bookmarking
Onlywire - setup each of your sites to autopost to onlywire (if they are blogs), 1 OW account per site

For low-budget, you might want to look at Big Mike's incansoft apps. They're pretty affordable and do the jobs they say they do.

Also grab a free copy of seo spyglass. Do a google search for it. They also have some other free excellent tools but spyglass is the main one.

I know Samurai, I used the trial to come up with my niches and I already use OnlyWire, I'll check out other suggestions.

I'm mostly looking for tools that create backlinks (SeNuke, EVO style) automatically.

Run all your sites through the statblaster available for free, created by a member here. Also, as someone recommended, use articlebot 2.0 (look in the downloads section) for submitting to article directories..
Also, I've not tired out scrapebox myself, but have heard good things about it..

Scrapebox is on my to-buy list considering all the praise I've seen on this forum