The toucam is great just for the ease of things, plus you can do a long exposure mod and amp off, also you can upgrade the ccd. For its age it does very good, though if your a DIY grab a Microsoft lifecam cinema if its just for planets as it mind blowing for the price. This link has all the details
http://ghonis2.ho8.com/lifecam/lifecam1.html . Alot of guys on SL use them and get very good results and they run rings around the toucam for planetary due to resolution and fps despite being cmos based. Though the toucam /900nc has so many options for a DIY on a tight budget and can even be used later as a budget guide cam, there that many upgrade paths and mods it just makes it a cam thats going to live for a few years more to yet despite it age.