The pickups are crap on the Dean.
Jackson King V KVX10
Line 6 Spider III 75 W.
Peavey 5150/6505 Combo to be owned at the end of 2010.
Deans are alright, but with those prices, I wouldn't trust 'em.

Honest answer: Epi SG Supreme (not of either of those)
Biased answer: Ibanez FTW
No man is your friend, no man is your enemy, but every man is your teacher.

When he asked for John Myung, John Myung said:"Who the hell is John Myung?"

Proud User of Ibanez, Korg, Rocktron, ENGL
ya if neither of these is a really good choice than i am open to suggestions. The only thing i would like to keep the price between 200 and 250.
Dean, i ****ing love my dean
When shit hits the fan...step to the side of the fan.
i had that ibanez for my starter guitar
i´ve been playing for a year and i still think it is good
you are going to like the neck and the neck pickup gives sweet cleans(normal from a single coil)
LTD MH-1000
Ibanez RG350EX
ibanez GSA60
Line 6 Spider III 30W
Peavey ValveKing 112
Boss GE-7 EQ
Electro-Harmonix Small Clone Chorus
Digitech RP350
the ibanez better quality.
Ibanez RG1570
B.C. Rich KKV
Jackson RR3
Jackson RR5
Ibanez S320
Ibanez S520EX
Dunlop Zakk Wylde Wah
Marshall 2203KK
Marshall 1960A 4x12 Cab
Boss ML-2 Metalcore
Coffin Case Blooddrive
The Ibanez.

Even if the Dean was close to as good, I would still avoid odd body shapes for a beginner guitar. You are going to want to sit at some point while practicing and rather than compensating for sitting with a weird guitar shape, a normal shape like the Ibanez will be more comfortable.

As said above, there are other decent guitars in that price range, too. Focus on quality more than tone. Hard rock and metal tone generally comes from expensive high-end amps, so you really aren't going to be getting those tones from a $200 guitar and probably a cheap starter amp (keep in mind you do have to buy an amp for an electric guitar, if your total budget is $250 for both, you may have to go a bit cheaper on the guitar).
My Gear
Edwards E-LP-98LTC
Ibanez RG 321 MH
Jackson DK2M with tonezone
Mesa Mark III
Tech 21 Trademark 10