@ ZeroHart: I'd say that coming from your list, you could make a pretty effective deck actually. I'd say that due to the taste in playstyle you previously stated that Haohmaru was your best bet to start off with. I say this because he has a starter deck from Cutting Edge (he has another one, but it is no longer legal, so be careful if you're going to buy him) which is pretty effective as while he doesn't recur cards from his discard pile, he can do it after he blocks with cards like A Samurai's Life. Personal Style is one of his deck rares and is a very easy, yet effective damage pump card. I'm also glad that you've put Ken down as well, as he also has a Starter Deck from Domination (the same rules apply here as to Haohmaru, Ken has a cycled out Starter Deck too, so try and make sure you get the Domination one) which shares a good few similarities to Haohmaru in the sense that Kens cards allow you to draw a hell of a lot. One of his two deck rares; Kuzuryu Reppa, is very often played by high calibre players, and is a very effective card to use with a character like Ken or Haohmaru. Ken also has a promo version that has been recently released, which gives you something to strive for later on .
I'd say that your best bet was to get yourself one or two of each of those two started decks (you only get two of the deck rares in each deck) as a front for your collection, then start by buying boosters in small amounts to add extras into the deck as you see fit. Domination is a pretty good start as you'll get Ken's support from it which can prove to be effective (Like Son Of A Tycoon and Kama Harai Keri). After that, you'll probably find you'll know the game well enough through the use of both the instruction manuals and playing to be able to discern what's good and what's not, so enjoy
@Tygretoe: Morrigan is a very interesting character with extremely big potential. In fact, I'm actually playing her myself at the moment and really enjoying it (gorgeous artwork helps, a lot!), however, she isn't what I would call a good character to start with as she relies heavily on what her opponent is doing, which means you have to pay attention at all times to what you can and can't copy. For example, if an ability you're wanting to copy causes the card to commit, Morrigan will have to commit herself to use it, which means that you have to pick and choose what you want to copy if you have to pay for it. What is it about Morrigan you like? If it's Morrigan herself you like, then perhaps her Promo or Promo Lilith might be better for you until you get a firm grip on the game altogether. If you're definately intent on building THAT Morrigan, then I would say that your best bet was to make the deck as versatile as possible. Darkstalkers in general isn't all too kind to new players, unfortunately, although some of Morrigans support is definately worth playing. I'm sure you've heard the name Olcadan's Mentoring flying about on these forums. Well Without A Care is a good substitute for that until you can get some of these 'less than easy' cards to get. Shadow Blade is an EXTREMELY powerful attack with Morrigan, as it allows you to destroy what you can't use youself. One of the best things about Morrigan is that you can build her in almost any way, and the recent Set 11 is definately a good place to start to show this. Sogetsu's support from Flames Of Fame allows you to integrate draw and discard into the deck, while Kim's support can help you play a more aggressive build off Good. Bison's support in Warriors' Dream like Past Shrouded In Mystery and Charismatic allow you to do what I stated with Shadow Blade; destroy what you can't use yourself.
I hope I've begun to help, if you have any more questions, feel free to ask