After searching for some ideas for my deck, I've did this list, ordered by price, from some competitive/semi-competitive budget Combo Elves decks over the Internet. Those decks seems to be solid (for a budget deck), can be used by people who can't afford Gaea's Cradle, fetchalds or Natural Order. Here goes the list:
4 Quirion Ranger
2 Llanowar Elves
4 Heritage Druid
1 Priest of Titania
3 Fyndhorn Elves
4 Birchlore Rangers
1 Viridian Shaman
4 Elvish Visionary
4 Nettle Sentinel
4 Wirewood Symbiote
1 Craterhoof Behemoth
2 Elvish Mystic
1 Dryad Arbor
4 Green Sun's Zenith
4 Glimpse of Nature
13 Forest
1 Qasali Pridemage
3 Elvish Archdruid
1 Viridian Shaman
3 Faerie Macabre
2 Sylvan Safekeeper
1 Scavenging Ooze
2 Dismember
2 Gaddock Teeg
3 Quirion Ranger
4 Llanowar Elves
1 Elvish Archdruid
1 Birchlore Rangers
2 Priest of Titania
4 Heritage Druid
4 Elvish Visionary
1 Viridian Shaman
4 Nettle Sentinel
4 Wirewood Symbiote
2 Elvish Mystic
1 Dryad Arbor
1 Emrakul, the Aeons Torn
3 Summoner's Pact
4 Green Sun's Zenith
4 Glimpse of Nature
14 Forest
1 Pendelhaven
3 Tormod's Crypt
4 Thorn of Amethyst
1 Mortarpod
1 Viridian Zealot
2 Krosan Grip
2 Surgical Extraction
2 Mindbreak Trap
3 Quirion Ranger
4 Llanowar Elves
1 Elvish Archdruid
1 Birchlore Rangers
1 Fyndhorn Elves
2 Priest of Titania
4 Heritage Druid
4 Elvish Visionary
1 Viridian Shaman
4 Nettle Sentinel
4 Wirewood Symbiote
1 Elvish Mystic
1 Dryad Arbor
1 Emrakul, the Aeons Torn
3 Summoner's Pact
4 Green Sun's Zenith
4 Glimpse of Nature
14 Forest
1 Pendelhaven
3 Tormod's Crypt
4 Thorn of Amethyst
1 Mortarpod
1 Viridian Zealot
2 Surgical Extraction
2 Krosan Grip
2 Mindbreak Trap
4 Heritage Druid
1 Llanowar Elves
4 Priest of Titania
4 Birchlore Rangers
1 Viridian Shaman
4 Elvish Visionary
4 Nettle Sentinel
4 Wirewood Symbiote
2 Craterhoof Behemoth
2 Dryad Arbor
1 Ruric Thar, the Unbowed
4 Glimpse of Nature
1 Genesis Wave
2 Natural Order
4 Green Sun's Zenith
14 Forest
4 Pithing Needle
1 Angel of Despair
1 Qasali Pridemage
2 Ashen Rider
2 Mindbreak Trap
1 Progenitus
1 Gaddock Teeg
3 Wirewood Hivemaster
2 Quirion Ranger
4 Llanowar Elves
4 Birchlore Rangers
1 Priest of Titania
4 Heritage Druid
2 Elvish Archdruid
1 Elvish Visionary
3 Joraga Warcaller
4 Nettle Sentinel
1 Viridian Zealot
4 Wirewood Symbiote
3 Chord of Calling
1 Summoner's Pact
4 Glimpse of Nature
1 Grapeshot
2 Green Sun's Zenith
4 Wooded Foothills
1 Verdant Catacombs
1 Pendelhaven
3 Staff of Domination
1 Pithing Needle
1 Tormod's Crypt
1 Phyrexian Revoker
2 Elvish Archdruid
1 Priest of Titania
1 Choke
1 Noxious Revival
1 Beast Within
2 Krosan Grip
1 Mindbreak Trap
2 Fyndhorn Elves
2 Llanowar Elves
4 Heritage Druid
4 Priest of Titania
2 Birchlore Rangers
4 Elvish Visionary
4 Nettle Sentinel
4 Wirewood Symbiote
1 Craterhoof Behemoth
2 Elvish Mystic
1 Dryad Arbor
1 Dryad Arbor
1 Progenitus
4 Natural Order
4 Glimpse of Nature
14 Forest
1 Tormod's Crypt
2 Pithing Needle
1 Viridian Shaman
1 Faerie Macabre
1 Craterhoof Behemoth
1 Scavenging Ooze
4 Steely Resolve
1 Gaddock Teeg
1 Ruric Thar, the Unbowed
3 Quirion Ranger
4 Fyndhorn Elves
1 Birchlore Rangers
4 Priest of Titania
4 Heritage Druid
2 Llanowar Elves
1 Viridian Shaman
4 Elvish Visionary
4 Nettle Sentinel
4 Wirewood Symbiote
1 Dryad Arbor
2 Ezuri, Renegade Leader
1 Summoner's Pact
1 Chord of Calling
4 Green Sun's Zenith
4 Glimpse of Nature
14 Forest
1 Gaea's Cradle
1 Thorn of Amethyst
1 Pithing Needle
1 Relic of Progenitus
2 Faerie Macabre
1 Dryad Militant
1 Scavenging Ooze
1 Fecundity
2 Choke
1 Surgical Extraction
1 Krosan Grip
1 Nature's Claim
1 Umezawa's Jitte
1 Emrakul, the Aeons Torn
3 Quirion Ranger
4 Heritage Druid
1 Birchlore Rangers
4 Priest of Titania
4 Fyndhorn Elves
2 Llanowar Elves
4 Elvish Visionary
1 Viridian Shaman
4 Nettle Sentinel
4 Wirewood Symbiote
1 Dryad Arbor
2 Ezuri, Renegade Leader
1 Chord of Calling
1 Summoner's Pact
4 Glimpse of Nature
4 Green Sun's Zenith
13 Forest
1 Cavern of Souls
1 Gaea's Cradle
1 Pithing Needle
1 Relic of Progenitus
1 Thorn of Amethyst
2 Faerie Macabre
1 Dryad Militant
1 Scavenging Ooze
2 Choke
1 Fecundity
1 Nature's Claim
1 Surgical Extraction
1 Krosan Grip
1 Umezawa's Jitte
1 Emrakul, the Aeons Torn