Problems with touchpad/mouse

I have an Inspiron E1505.  It just turned 1 year old a couple weeks ago.  About a month, month and a half ago I started having problems with the touchpad/mouse clicker on my laptop.  I can still use the touchpad to move the mouse, but I can't click on anything.  At the time it started going wonky I did try to contact customer support but I had some problems doing that and I just didn't have time to keep trying, so I just went out and bought a usb mouse, and that worked fine.  Yesterday I started having problems with that (sometimes it works, sometimes it doesn't), but I'm pretty sure it's a problem with the mouse itself and not my usb ports because the other things I use it for (iPod, etc...) seem to be working just fine.  Rather than go out and by another cheap mouse that would just break again in a month I thought I should really see about getting the touchpad fixed. 

 

What I need to know is, where I have to send/take my computer to get it fixed, how long is it going to take (classes start in a week, I shouldn't need it right away, but I don't want to be without it too long), and how much is this kind of repair likely to cost me?

 

Thanks in advance to anyone who can help.