When I have been recruiting, the certifications are a giude, not the reason I would hire anyone, or even interview them. What they do show is that this person should have a certain level of understanding and technical knowledge, not that they can do the job. Experience is the main thing I was looking for most of the time.
In the most junior roles, then the fact that they had gone out and got a cert on their own, I always took to show that this person was serious, and actually wanted to learn. So for someone starting out, it is a bit of an edge over those who don’t have them.
My feeling is that you need to decide what area of IT is interesting to you, and read up on that area, so you can answer basic questions at an interview. If you have some money available, go on one of the basic courses, such as CCNA if looking at networking, and get the exam. This should be about £1200/$1500 which is probably money well spent. Most decent companies will pay for additional training when you have started. Also you will learn much more on the job, through getting things to work by yourself, and working with more experienced colleagues, than you will on a structured course. Courses are good for learning new technologies, or new equipment, but not for gaining experience.
The courses that ‘guarantee’ work at the end of the course, are mostly raising expectations too high, and, I think, are just trying to take your money. Personally I would steer clear of these.
Good-Luck with finding a job.
I will add it really depends on where you are applying for a job. At my job location certifications are required to get an interview. Of course once the interview is granted then they are also going to evaluate competency and experience. But no interview without a cert. So make sure you know what is required. If the job you are looking for requires you have one then go get one first!