University degree

Hello everybody. I'd like to get bachelor's degree online, but I'm not sure which university to choose. I've found a few universities, here are the links: <a href=http://mywebpage.netscape.com/webdegreeonln>bachelor online degree in Phoenix University</a> <a href=http://www.angelfire.com/planet/online-degree>accredited online bachelor degree UCLA</a> <a href=http://www.freewebs.com/bachelor-degree>bachelor online degree at Boston university</a> <a href=http://mb-online-degree.blogspot.com>accredited Alabama State Colledge degree</a>
Maybe somebody can give me any advice? How hard is to study there? You know, I'm working overtime and I worry if I'll have enough time to get good marks. I'll be very greatfull for every advice. Thank you very much.