Paid Search bid management software

[Hiroyuki]

I work for an e-commerce company and I am in charge of search marketing. Recently our paid-search budget is increasing rapidly. I do not have time to build keywords and bid management now, that's why I am thinking to use bid management software.
There are many bid management software. I do not know which is the best for us. Does anybody knows those software's strength and weakness?

-Omniture SearchCenter
-Efficient Frontier
-SearchIgnite
-atlas
-Marin Search Marketer
-KENSHOO SEARCH
-Media Boost
-TD Technology
-Double Click DART SEARCH
-BidHero
-24/7 Decide DNA
etc...

[biking4jesus]

there are several threads around here that discuss this topic.

We use Efficient Frontier Express and have been for about 2 years. I have seen a demo of Marin and it is definitely a great product just expensive.

[Virtualari]

I would look at Kenshoo Search. I have seen their demo and it is very impressive. Not only for bid management, it also works really well with big dynamic sites. They automate alot of the processes, plus I think they are cheaper than marin.

[Drace]

My customer completes the lead form requesting more information
I want to connect the adwords keyword they used with that customer so that I can know which keywords resulted in a sale (the customer meets with a sales person, so the sale is not generated when the lead is created, and not all leads become sales). Salesforce.com says they can do that, but after a bad experience with Netsuite I am loath (never get to use THAT word) to give them a shot. Is there a way to connect that information using one of the programs you listed above?