Posted status
The website layout is a little confusing, but this SWR analyser and WSPR TX looks fun: http://jackdev23.wixsite.com/iw2ndh-swr-analyzer
Out of stock but usually ~ €50 plus shipping, so not bad!
I also keep seeing people mention http://sp3nyr.itserwer.pl/index.php/arduino-swr-scanner and N1201SA a lot too. Lots of interesting (low cost?) options based on lots of platforms.