We've just added a little tip in the forum to help you cut down on some time when using grey box to create an image gallery in the Shop Front Template 2.0. Its just really replicating the code that we have used on some of the gallery popups on this site that have come directly from the Grey Box website, only we've thrown in a step by step guide to setting it up with minimum fuss with Joomla! code cleaning wysiwyg editors. You can read about it here
Colour Schemer is a great website for helping you to choose new colour schemes and find colours in use at other websites. They also have a free utility call ColorPix which actually gives you the colour number of any pixel on the screen ... I use this tool alot.
Also try Colorcombos for more colour inspiration.
This tutorial explains the process for changing the background colour of the editor when using your template. In cases where the background image or colour is the same as the colour of the font it is impossible to read the text you are writing in the content administrator.
This is an indepth tuorial to help resolve this situation: http://forum.joomla.org/index.php/topic,85816.0.html Most of the Joomlabamboo templates will come with an extra editor_content.css to help avoid this.
For most new Joomla! users using the front page function can be somewhat confusing. Once you get the hang of it it can really be quite liberating ... changing the way you think about writing articles and presenting information to visitors to your website.