check out this video:

http://www.youtube.com/watch?v=hT6Ow_cBTps

this helped me understand how to glue acrylic when i was building my xbox 360 cooling case.

personal tip: be very careful when using the acrylic cement... dont b like me, i accidentally spilled some on my finger and it literally killed a small portion of my finger's skin surface. if that does happen, run your finger under water for a few minutes. the damage shouldnt go any deeper than the top layer of ur skin surface. the skin will jz be like dead hard skin and should fall off n replaced with fresh skin over a few days~