Before you go and spend the few hundred dollars for new injectors, you should make sure that's the root cause. You could have low compression as well.
Also note you can have your injectors cleaned for around $17 each which includes return shipping. I used KGParts (the fuel injector part of the company is called
http://injector-rehab.com/shop/home.php) and they turned them around very quickly. You might be able to find someone locally to clean them so you only have to take a day off unless they are open when you are off.