Windows: If you're a fan of system monitoring applications but you're constantly underwhelmed by how little they actually monitor — just memory and CPU usage? Pitiful! — then you'll want to take a look at Glint, a more-is-better system monitor.
Glint can monitor up to 200 different aspects of your computer's system and resource usage. Certainly monitoring just your memory and CPU usage is satisfactory for most people, giving you little visual indicator as to what might be causing your system slow down, but if you want or need to delve deeply into how your computer is operating Glint is happy to help. You're not limited to monitoring just the over all memory use, for example, you can monitor memory caching, paging, page faults, commit limit and more — Glint can monitor 34 distinct memory-related variables.
If you're looking for something a little less visually overwhelming and a little more to your non-developer tastes, definitely check out previously reviewed SuperBar Monitor, a clever Superbar-based monitoring tool for Windows 7. Glint is freeware, Windows only. Have a favourite monitoring tool? Let's hear about it in the comments.