If you don't wish to type... you can capture the URL and page title together -- the page title is what appears on the browser's window title bar when that page is active -- using a bookmarklet, also known as a favelet.
Example of code generated by the bookmarklet:
[url=http://windowssecrets.com/forums/showthread.php/136041-Posting-Links]Posting Links | Windows Secrets Lounge[/url]
which gives you:
Posting Links | Windows Secrets Lounge
You can edit the descriptive text to your liking before submitting your post (some page titles are not very descriptive).
To create your bookmarklet/favelet:
(1) Internet Explorer
Copy the code below to the clipboard. Then right-click the destination for your bookmark (e.g., Bookmark toolbar, menu, sidebar) and choose New Bookmark. Use a name like BBCode Link Maker and paste the code into the Location space.
(3) Other browsers... sorry, none handy to test at the moment.
Note: I recommend using "Preview Post" to confirm that the link is formatted correctly.