At last Amazon.com is bringing out the Travis McGee novels in Kindle format, with a foreword by Lee Child. The prices vary, but if you've been wanting to collect the McGees in e-format, this is your chance. I've picked up only one so far--The Empty Copper Sea--and it looks well-formatted and well-presented. Good story, too!
And of course I am a John D. MacDonald fan, so take that for what it is worth.