Thank you to both of you guys for helping me out.
TyWoo, I've saved the deck list you created for me into my Deck Ideas on this website, for later creation. I basically have two local stores, one of which is pretty poor for singles, and the other of which has way too many common/uncommon singles to look through in such a short space of time - and no way to tell customers which they have in stock, which sucks. So, I've decided to put aside your idea for now, but I'll definitely be creating it as soon as I can, because it's a pretty awesome sounding deck.
However, when I went to the store that's poor for Magic singles, there was a pretty experienced and knowledgeable Magic player there who was kind enough to edit my Zendikar's Rage Intro Deck so that it became somewhat use-able for Game Day, and so that I might actually be able to win a few games with it, haha. He also made me a side deck for it, which I pretty much immediately accidentally put right back into my massive card collection, and then neither of us could work out what it consisted of, so we ended up giving up. BUT, I do have my main deck ready for tomorrow, which is great. Apparently, cards from older sets are legal so long as they have been reprinted into currently legal sets - which is something I didn't realise, and am really hoping is true, haha.
So, the deck I will be using for Game Day tomorrow is a red/green Landfall deck, as follows:
1 Act of Treason
1 Akoum Stonewaker
1 Blighted Woodland
4 Evolving Wilds
2 Fertile Thicket
8 Forest
2 Grove Rumbler
1 Jaddi Offshoot
1 Looming Spires
1 Makindi Sliderunner
7 Mountain
1 Murasa Ranger
2 Natural Connection
1 Nissa's Renewal
1 Oran-Rief Hydra
1 Plummet
1 Reclaiming Vines
1 Retreat to Kazandu
1 Retreat to Valakut
1 Rolling Thunder
1 Rot Shambler
1 Scythe Leopard
4 Seek the Wilds
4 Snapping Gnarlid
1 Sure Strike
1 Swell of Growth
2 Sylvan Scrying
2 Territorial Baloth
2 Tunneling Geopede
1 Ulamog, the Ceaseless Hunger
2 Valakut Predator
Any last minute sideboard suggestions would be great, although I'm not sure a sideboard would make too much of a difference if I don't manage to make one before Game Day...
Thanks again, guys.
~Komm.