I am often running a Grabber on some Band and Mode or other. My interests are too varied to dedicate my efforts to Meteors, 8.27KHz, 474KHz, ZEVS, Sferics, LF, MF, HF the list goes on.
What I could do when monitoring VLF is use the same Computer to provide a QRSS Grabber on any HF band, something I haven't done up to yet.
I have also given a Toshiba Satellite Pro 4600 Laptop its last escape from the grave. The thing has hardly been used, looks brand new but is so ancient it is as slow as a snail. I tried to palm it off on the XYL, installed the first ever release of Ubuntu and Puppy Linux but the thing just can't cope.
So I have installed a minimised version of XP with Argo, WSPR2 and the necessary peripherals this can run as a Grabber or WSPR RX 24/7 on request, its much quieter than a desktop with the fans raging and less current consuming. Last night it survived an overnight run.
It's not perfect, it likes to generate its own little descending pulse on the trace every so often but its adequate.
One last thing that enables reliable Grabber operation is my new, never drop out, Wifi Router, it was hardly worth leaving a Grabber on overnight when most likely the Web would disconnect 3 seconds after I went to bed.
Here is the G3ZJO HF QRSS Grabber location. QRSS GRABBER
It won't be one of those wonderful full time Grabbers for the reasons stated but a I will fire it up in response to a Message to Knights QRSS or QRPlabs Groups, there are many new QRP / QRSS stations coming via the latter efforts.