If you want to get started in a career in networks - most people generally tend to go straight for the CCNA, if you go in at the entry level you'll be competing against people with CCNAs anyway.
My advice would be to buy the study guides, set 3 nights a week and one half-day at the weekend for study, book the exam for 6-9 months time - before you know it, you'll have passed, (on average most people with no experience should aim to complete a CCNA with no experience in around 6-9 months)
The problem with a lot of the courses like Computeach is that they simply just regurgitate what you read in the official study guides for a high price, youtube has plenty of decent videos, - other companies like CBT nuggets do good videos.