Hey,
banause's husband here.
I'll try to answer your questions, but let me first try to explain the options you have:
a) have the phone and DSL line with
T-Com and get the DSL service (flat or otherwise) from someone else.
b) have the phone line with T-Com but the DSL Line with a reseller who also provides the DSL service.
c) have everything with some other company like NetCologne, Alice, etc.
for a) This is probably the most flexible way if you don't know whether you want to stay with DSL forever since the T-com part of the service can be terminated within a week about. There are hardly any providers left for this service though as they can make more money out of the resale business. Congster.de, Strato.de and Kamp.net have offers, I think. I'm using Congster localFlat at 5EUR/month with a 1 year contract.
for b) A lot of providers for this one. They'll usually give you a modem or router with the contract, but they can only offer that with a long term contract (usually 2 years).
for c) The providers available to you might depend on where you live. You won't be able to use "call-by-call" numbers for long distance or international calls. They usually also have long term contracts (typically with hardware).
So:
QUOTE (sgmiller @ Mar 9 2007, 8:23 pm)

1) Where would I go or who do I talk to to just set up the T/COM DSL line and how much does it cost? Can I just go to my local T-Punkt? As far as I can see, there is a 29.99/month offer for a 16,000 DSL anschluss. Is this what I want?
Yes, that's the line you want if you want to go the a) route. The price is 30,77 EUR due to the increase in the
MwSt. and it requires you to already have an analog or ISDN phone line with T-com. I'd not go to the T-Punkt since they will try to sign up for all their other services inlcuding T-Online. Just order it online:
http://www.t-com.de/Katalog_PK -> Surfen -> DSL-Angebot -> für Neueinsteiger -> (either
T-DSL Anschluss or T-DSL Hardwarepakete).
QUOTE (sgmiller @ Mar 9 2007, 8:23 pm)

2) What companies would allow me to quickly set up a flat rate data account? HOw long does it take to get just an ISP account set up? I assume once I get the account, all I need is a user id/password to get going.
Like I said, we're using Congster.de at 5EUR/month (localFlat), which actually is a no-frills subsidiary of T-Online. There aren't that many alternatives if you want to have your line with T-com directly (rather than with your ISP as a reseller).
QUOTE (sgmiller @ Mar 9 2007, 8:23 pm)

3) Who provides the modem? I assume it would be T/Com.
There are some offers in the online store of T-com (T-DSL Hardwarepakete) which will get you a modem or router if you sign up for "Rechnung Online". In that case you will get your monthly phone line bill via email only. If you don't like that: No one provides a modem if you want to have your line with T-Com since the contract times are too short.
QUOTE (sgmiller @ Mar 9 2007, 8:23 pm)

4) Most importantly, am I going to be sorry that I am adding more complexity to this system? In other words, if something does go wrong, I will have to deal with two different companies who could potentially blame each other.
Yes. If it's a line problem (no sync, drop outs) call T-com, if it's an account problem (username/password doesn't work, line is slow) call your ISP. With the resale option (b), you would only have one company to talk to, but since they only purchase the service from T-com, they usually can't help you with line problems anyway (and their hotline might be expensive. Check that if you depend on hotlines a lot).