Anyone Fluent in Japanese? Got a Quick Question!

[Dawndus]

よろしく。
I'm a first year Japanese student, and can read and write Hiragana + Katakana + can understand at least basic Japanese. I'm attempting to get my name (Dawndus) in Katakana, for the PSP2 that I'm importing. This is what I had figured:
ダーウンーデス The "dus" at the end has got me scratching my head. It's not a hard "da" nor is it really the "de" that I tried to match it too.

And if it helps, it is pronounced like this: Dawn-dus(like, duhs).

In anyways, I'm looking for a second opinion and some help.

Thanks so much!

[FOnewearl-Lina]

ドーンドゥス
Oh hi, Daaunndesusan!

[Akaimizu]

I like FOnewearl-Lina's suggestion if only because it keeps it simple.

[Dawndus]

ドーンドゥス
Oh hi, Daaunndesusan!

You are amazing. I was overthinking it big time. XD

Thank you, thank you, thank you!

[Zarode]

ザーローデーウグゥちゃん

That's my name in glorious Nippon.

[FOnewearl-Lina]

uguuchan!
Goooooal!

[Epically Leet]

ドーンドゥス
Oh hi, Daaunndesusan!

Susan? D:

[Akaimizu]

That reminds me of Samurai Shodown. Haohmaru has a move in which he shouts, "Kogetsuzan". Of course, some folks playing the game will say, "You go get Susan!"