I am not familiar with any DIY/Biopunk reading, however, I can point you towards a lot scientific literature and history of biology texts. It depends on what you want. Are you interested in technical reading (i.e. actual methods), basic biology (concepts) or perhaps history of biology, which can be very informative about how genetic engineering and our understanding of these concepts came about.
So one book I would strongly recommend is A History of Molecular Biology. http://www.amazon.com/History-Molecular ... 0674001699
The price has gone up considerably, I bought it for much cheaper. However, the used versions are reasonably priced. It give an excellent overview of the history of how molecular biology developed from the physics community and genetics communities earlier in the 1900s.
A more conceptual/technical book: Gene cloning and DNA analysis, excellent for beginners to the field: http://www.amazon.com/Gene-Cloning-DNA- ... 063205901X
An excellent technical introduction for those who have little to no lab experience: At the Bench http://www.amazon.com/Bench-Laboratory- ... 0879695234
This last one has some basic protocols, lots on lab safety and procedures, introduction to basic equipment found in labs. The sort of thing that is a very useful lab manual for those just starting out.
Of course, if you want really technical reading, there is the Bible of Molecular Biology, the three part Molecular Cloning, A Laboratory Manual: http://www.amazon.com/Molecular-Cloning ... 0879695773
This one is very expensive, and if you ever find a used one for under 50 bucks, snatch it up and treasure it. Molecular Cloning has been the standard on basic molecular techniques for years. I remember 8 years ago when I first started lab work, the post doc dropped one of the volumes down in front of me and said "read this." Some of the techniques used in it are highly specialized and a bit outdated, but on the whole, the thing is golden.
Another excellent book on more the historical origins, Phage and the Origins of Molecular Biology http://www.amazon.com/Phage-Origins-Mol ... 0879695951
This is a series of essays written about Max Delbruck and his group. Max Delbruck is one of the fathers of Molecular Biology. A physicist who switched to studying bacterial viruses (phages) his group helped develop and lay the ground work for a lot of modern day molecular biology.
If I think of others, I'll let you know.