Looking at the FR Greater Deities list... it seems like everything is actually pretty well condensed to a potential 4E-ish number.

There are 21 deities listed under 'Greater' for humans... however 4 of them are the four elemental deities, another 6 are evil deities (and thus wouldn't ordinarily appear in a regular deity list) and the last one is primarily a Chultan god (Ubtao) The remaining 10 greater deities are as follows:

Chauntea - goddess of agriculture
Kelemvor - god of death
Lathander - god of birth and spring
Mystra - goddess of magic
Oghma - god of knowledge
Selune - goddess of the moon and stars
Silvanus - god of nature
Sune - goddess of love
Tempus - god of war and battle
Torm - god of duty and loyalty

So that gives you an easy list to use as your primary functionality for gods in the Realms. You really needn't go much further than that if you didn't want.

However, if you did want to add a few more, you have another couple of steps. First off, you can add in the four Greater Deities of the demihuman races:

Moradin - dwarven god of creation and smithing
Corellon - elven god of music and arts
Garl - gnome god of humor and trickery
Yondalla - halfling god of bounty and family

And then you could also add in the remaining 6 non-evil Intermediate deities:

Bahamut - god of wisdom and justice
Gond - god of artifice and craft
Ilmater - god of endurance and suffering
Mielikki - goddess of forests and autumn
Tymora - goddess of fortune and skill
Waukeen - goddess of trade and money

So for a baseline game... you could stick with the 10 Greater Deities and use them. Or if you wanted more variation... add in the other 10 and give yourself 20. Or mix and match as you feel is needed... like using the 10 Greater human deities plus Moradin and Corellon (getting you closer to what 4E's setting went with in terms of domain and gods.)

Speaking personally... I'm probably going to end up looking at the actual domains the PH gives us and then determine off of that which and how many of the FR gods I'm going to make available for cleric selection. So for instance... if there's only five domains as were mentioned in the last playtest packet (Knowledge, Light, Life, Nature, and War)... then I'll probably just offer up to my players the five greater deities that align to them that they can select from:

Oghma - knowledge
Lathander - light
Chauntea - life
Silvanus - nature
Tempus - war

But we'll have to see. I'm actually hoping we might get up to about 8 domains because I'd love to see Magic, Protection/Justice, and Trickery available as well.

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