Here are some pointers to resources scattered across Access to Insight to help you in your Pali studies.
For an extensive review of available Pali and Sanskrit fonts, see Transliteration and Devanagari Fonts for Sanskrit, by Ulrich Stiehl. The Association for Insight Meditation's Pali Font Resources page offers several ANSI and Unicode fonts suitable for working with Pali.
Here are some fonts I can personally recommend:
This remarkable collection of tables condenses a huge amount of grammatical information into just a few pages. A very useful reference for Pali students of all levels.
Links to other websites offering CD-ROM editions of the Tipitaka, Pali discussion groups, Pali courses, etc.