I am building a dedicated HT soon and currently auditioning the hardware. The Def Tech power towers are being considered. The room will be roughly 14x20 with 8'-9' ceiling. I have a limited budget but want to make decisions that I will not regret later. Here is my question. When considering the Def Techs, would you: a) buy the 2006TL with the 8" internal subs b) buy the 2006TL with the 8" internal subs along with a separate SVS c) buy the 2002TL with the additional drivers and the 12" internal subs. I want to come our as inexpensive as possible, but I do not want to regret my decisions later and want quality sound. The dealer tells me I need no separate sub. I have not auditioned enough to be sure of that and want the impact that only quality bass can give. I am not sure the 2006TL alone can give me that. Please tell me what you would do and answer as though you were paying the tab. Thanks!