Real Weather and GPS:  Great Utility to import

weather data from the internet (see my METAR page)

FSNav:  The best improvement to FS98 I think. Makes it easy to navigate and to create  Flightplans                         

Bluesky for FS98:  Changes the default colour of the sky into a real deep blue (Shareware)

FSmoon: Adds a moon to the night sky. Looks cool.

FS Traffic: Adds traffic to all ILS where you are flying. The sky gets busy ! (Shareware works for 30 mins)

FS98 Texture Update: Cool textures who look more realistic.

Some real good textures which make flying more realistic to replace the default ones (highly recommended !):

clouds  newcloud   newburb  newburb2  newcrops  newstorm   stormy   water  grass  grasstex99  texture