I have a Undergrad GPA of 2.5 and a GMAT of 550.

hi tahbified, first and foremost, welcome.

As you'll see in this forum, everything is divided into sub-sections. Depending on your needs and questions, you can ask and search for answers in specific divisions of the b-school process, starting from gmat prepping to career posts post-MBA. From your post, I'm not exactly sure what it is that you're looking for; therefore, I usually don't reply. But seeing that you're first time poster here, I'm going to go against my better judgment and take a stab at what it is you're looking for. If you're looking for potential schools, you can post in the "Profile Evaluation" section and there are professionals (who do application management) who can help assess your profile; however, it'll be hard for anyone to assess your profile if this is all you can give to people. With your current GPA and GMAT, you'll be facing an extremely steep uphill battle if you're looking for top 20 schools in the nation. If your target and post-MBA goals require you to go to a top school, you need to find some way to boost your GMAT (prep for a few more months, then retake it) and if you can, build up an alternative transcript that shows b-schools that you'll be able to handle their rigorous curriculum. Also, you'll need to let peeps know what you'd like to do post-MBA, this way it'll be easier to assess which schools may fit better to your needs.