When I hit 80, I naturally started to put together a resto set (having levelled as feral and without any healing gear put away), so that I would be able to get back into healing.
I was a bit lost, to be honest. When Keeva hit 80, she was still wearing Tier 6 and Sunwell gear, which was quite good for Naxx 25. I never had to "put together" a set. Compare and contrast with Kiiva, who levelled entirely as feral and around about the 79 mark I realised I should prrrrobably consider taking the resto quest rewards if I was going to want to at least do 5 mans at 80..
So, I set about quickly looking at the reputations I had, what I had stashed in the bank, etc. At first I had to make do with half greens, half feral gear! Finding a green resto item was exciting. Greens at that point really were progression items for me.
With my "rule" that all of Kiiva's gear has to be paid for properly out of her own earnings (no outside loans, donations, or funds from other characters), I had to scrape together the cash to buy rep items and BOE epics.
My current gear is half enchanted, partly gemmed.. yuck. But it's because I am very literally scraping money together as I go. An epic here or there and I'm back to no cash - then back out to quest and farm and play the AH to get the next piece. Ha, I just remembered I still don't have glyphs.. :P
It's fun - it feels like I'm really working on my character, rather than having epics land in my lap.
My current gear:
Helm of the Majestic Stag - Kirin Tor (Honored)
Artruis's Focus Stone - quest (Sholazar)
Mantle of the Underhalls - quest (Icecrown)
Wispcloak - Auction house ~500g
Tunic of the Unduly Victorious - quest (Icecrown)
Putrescent Bands - purchased from gbank 200g
Moonshroud Gloves - Auction house ~500g
Bridenbrad's Sash - quest (Icecrown)
Earthgiving Legguards - Auction house ~320g
Earthgiving Boots - Auction house ~350g
Runed Mana Band - made by a friend (with my mats)
Lady Nightswood's Engagement Ring - quest (Icecrown)
Will of the Red Dragonflight - quest (Dragonblight)
Totemic Purification Rod - Kalu'ak (Revered)
Iron-bound Tome - made with Inscription
Harold's Rejuvenating Broach - quest (Nagrand)
To be honest I have been very busy with my two jobs, plus my current RL project of building a new chicken coop, so I haven't even had time to look at available gear and see what I should aim for to round out my "pre-raid" set.
I'm sitting at around 1450 healing in tree - not bad for not having stepped into heroics or raids yet. I'm quite happy with this starter set of gear that I have mashed together through quests and AH shopping sprees. Hopefully I'll get some time shortly to get a few more pieces, enchant and gem everything, buy some glyphs (heh), consider the various reps that I need to raise and for what benefit, plan out which badge items to get and in which order, and finally - do instances!
I can't wait to get back into healing :D