There isn't really anywhere you can 'put' them unfortunately. They will always follow you when you quick travel. And when you quick travel into a city your horse is put into the stable outside the city. If your worried the horse is going to die if you for example go somewhere dangerus you can get an invincible horse called 'shadowmere' by doing assassins guild quests
you can buy a horse in the stables located in front of the cities (except imperial city). All you have to do is go into the house right beside the stable and talk to the person inside or around about buying a horse. here is a list of the cities, what kind of horse available there, and how much they each cost:
Anvil-White horse 4,000
Bravil-Bay horse 1,000
Bruma-Paint horse 500
Cheydinhal-Black horse 5,000
Leyawiin-Paint horse 500
Skingrad-Bay horse 1,000
you could also steal a horse, but then your bounty will go up and it wont stay where you left it. it is worth the money in the long run.
you can get two free horses, one Paint horse from Prior Maborel in weynon priory. or inherit Shadowmere from Lucien Lachance after "the Purification" mission in the dark brotherhood
Of course. Well actually, I prefer to steal them
The Elder Scrolls: Oblivion (GOTY) since this one would have the least glitches, plus includes Knights of the nine and shivering isles expansions.
Very Very Very good two words buy it
You can buy them from Shady Sam http://www.uesp.net/wiki/Oblivion:Shady_Sam
buy it.find it on random loot or make it with alchemy
Yes you can still buy Elder Scrolls Oblivion at Gamestop, just sometimes it's out of stock.
Probably by the end of this year or next year
You can buy them from Shady Sam, he is north of the stables outside of the imperial city along the wall. He is there day and night,
You can not buy the whole game on Xbox LIVE, but you can purchase the expansion pack: Shivering Isles.
baah! oblivion ive had both you will spend a year of intent playing in awe of this game LOADS of good stuff, then add mods! of the serenity!
many traders will sell some lesser effect scrolls, the mages guild is free to join and will provide you with many spells and scrolls and when you enter an oblivion gate many deadra will drop useful scrolls
Buy it through the Elder Scrolls website, Steam, Xbox marketplace, or the Playstation Store.