Do you really need Arq and iCloud together? Why do you need BaseCamp and Google Apps (GA has a free tier anyway). Is it critical that you have your GA and BC files synced to your Dropbox (doesn't that just defeat the purpose of the 'cloud'?). Do you need Evernote when you could just as easily use Google Docs? There's a lot of overlap here. You could really escape with Arq, Dropbpox, and free Google Apps.
A lot of the listed services are redundant. I think I could hit 99% of the same functionality at half the cost using just a subset of those products.